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SVC-DASH-M: Scalable video coding dynamic adaptive streaming over HTTP using multiple connections SVC-DASH-M:可扩展的视频编码动态自适应流通过HTTP使用多个连接
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845147
Samar Ibrahim, A. Zahran, M. H. Ismail
{"title":"SVC-DASH-M: Scalable video coding dynamic adaptive streaming over HTTP using multiple connections","authors":"Samar Ibrahim, A. Zahran, M. H. Ismail","doi":"10.1109/ICT.2014.6845147","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845147","url":null,"abstract":"Dynamic adaptive streaming over HTTP (DASH) has gained a significant momentum for multimedia streaming due to its ability in crossing firewalls and availability of infrastructure. In the mean time scalable video coding (SVC) is building a similar momentum as it enables efficient media storage and caching. In this work, we identify the main components of adaptive SVC-DASH client and propose an streaming heuristic over dynamic multiple connections. The proposed algorithm is experimentally tested under different connection and link configurations. Our results show that the algorithm successfully achieves interruption free streaming under all the tested bandwidth and link configurations. Additionally, the usage of multiple connections results in noticeable improvements in the achieved streaming quality for large link delays.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121368326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Novel resource allocation algorithm for improving reuse one scheme performance in LTE networks 一种提高LTE网络复用性能的资源分配新算法
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845101
M. Hassan, E. Sourour, S. Shaaban
{"title":"Novel resource allocation algorithm for improving reuse one scheme performance in LTE networks","authors":"M. Hassan, E. Sourour, S. Shaaban","doi":"10.1109/ICT.2014.6845101","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845101","url":null,"abstract":"The main challenge of LTE networks is to use unitary frequency reuse factor to achieve highest possible data throughput, however it leads to a severe interference affecting active users. Several interference mitigation techniques focus on bandwidth partitioning methods to avoid cell edge interference, although they improve user's average SINR, such techniques reduce maximum achievable data rate. In this work, we introduce a novel resource allocation algorithm utilizing reuse one scheme whereas users are scheduled so that interference between adjacent cells' users served at same time in same RBs is minimized. Furthermore to meet LTE networks' low latency target, a novel algorithm is designed to obtain the optimum allocation of users with better complexity compared to well-known combinatorial optimization algorithms. Simulation results show that new proposed resource allocation algorithm improves both cell edge users' throughput and total average throughput, and also achieves improved user's average SINR than classic reuse one scheme.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127249830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Adaptive pilot power allocation for distributed antenna systems with large-scale CSI 大规模CSI分布式天线系统的自适应导频功率分配
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845117
Yingjie Zhang, W. Feng, N. Ge
{"title":"Adaptive pilot power allocation for distributed antenna systems with large-scale CSI","authors":"Yingjie Zhang, W. Feng, N. Ge","doi":"10.1109/ICT.2014.6845117","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845117","url":null,"abstract":"Pilot design plays a key role in the channel estimation of pilot-assisted multiple-input multiple-output (MIMO) systems. Power allocation is a momentous issue in the pilot design. In the literature, pilot power allocation among transmit antennas has not been investigated. This paper explores this issue by introducing discriminatory treatment of different channel parameters. Generally, the large-scale channel state information (CSI) is much easier to be obtained than the small-scale CSI because of its slowly-varying characteristics. In particular, under the assumption that the large-scale CSI is available, we propose an optimal adaptive pilot power allocation scheme among transmit antennas for the distributed antenna system (DAS) to maximize the lower bound of the downlink ergodic capacity. Moreover, the proposed scheme provides insight into how to choose from transmit antennas from another perspective. Simulation results demonstrate the validity and superiority of the proposed pilot power allocation scheme.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123750448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
SC-FDE femtocell energy saving using IB-DFE Interference Cancellation techniques 使用IB-DFE干扰消除技术的SC-FDE飞蜂窝节能
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845133
B. Branco, F. Ganhão, Luis Irio, Luís Bernardo, R. Dinis, Rodolfo Oliveira, Pedro Amaral, Paulo Pinto
{"title":"SC-FDE femtocell energy saving using IB-DFE Interference Cancellation techniques","authors":"B. Branco, F. Ganhão, Luis Irio, Luís Bernardo, R. Dinis, Rodolfo Oliveira, Pedro Amaral, Paulo Pinto","doi":"10.1109/ICT.2014.6845133","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845133","url":null,"abstract":"Femtocells were proposed as a solution to improve the performance in dense networks. They complement the macro base stations (eNB) with a dense set of low power micro base stations (HeNB). However, they also bring increased interference problems and consequently more collisions and lost packets. This paper considers the use of femtocells running the Single Carrier with Frequency Domain Equalization (SC-FDE) transmission technique. It evaluates the performance of an Iterative Block Decision-Feedback Equalizer (IB-DFE) receiver employing Interference Cancellation (IC) techniques in the downlink channel. Using the interference cancellation capability, it is possible to dynamically adjust the network deployment and reduce the network total energy consumption. This paper also proposes a HeNB control algorithm and evaluates the energy saving capabilities of the reception technique for different load levels. Results show that it is possible to turn off femtocells and still satisfy the user's requirements, with significant energy saving.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116041790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A tractable approach to coexistence analysis between COMPASS and TD-LTE system 一种易于处理的COMPASS与TD-LTE系统共存分析方法
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845084
Xianghui Han, Long Zhang, Xiao Yan, Kai Chen, Jia Min, Chenxi Su, Z. Feng
{"title":"A tractable approach to coexistence analysis between COMPASS and TD-LTE system","authors":"Xianghui Han, Long Zhang, Xiao Yan, Kai Chen, Jia Min, Chenxi Su, Z. Feng","doi":"10.1109/ICT.2014.6845084","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845084","url":null,"abstract":"With the rapid development and widespread deployment of TD-LTE system, its inter-system coexistence with Compass Navigation Satellite System (COMPASS) has become a big problem. To ensure the coexistence between the two systems operating in adjacent bands in the same geographical area, a tractable coexistence analysis approach is proposed and the outage probability is derived using stochastic geometry in this paper. Compared with the traditional Monte Carlo systemlevel simulation, our proposed interference analysis model is efficient and adaptive to the increasingly opportunistic and dense placement of base stations. Moreover, we formulate a Maximum Adjacent Channel Interference Ratio (Max-ACIR) resource scheduling algorithm, which reduces the interference from TD-LTE uplink to COMPASS downlink. Finally, protection criterion for coexistence is given via simulation.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122731296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Transparent data for the M2M service capability layer: benefits and approaches M2M服务能力层的透明数据:好处和方法
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.7575094
Markus Glaab, W. Fuhrmann, J. Wietzke
{"title":"Transparent data for the M2M service capability layer: benefits and approaches","authors":"Markus Glaab, W. Fuhrmann, J. Wietzke","doi":"10.1109/ICT.2014.7575094","DOIUrl":"https://doi.org/10.1109/ICT.2014.7575094","url":null,"abstract":"A central goal of Machine-to-Machine Communication is to offer a common horizontal integration platform for various domains, devices, and applications. The automotive domain is considered as an intrinsic part. Besides, visions, associated with future connected vehicles towards Intelligent Transportation Systems and In-Car Multimedia systems, require new (distributed) automotive software architectures. For these reasons, a M2M-based Automotive Service Delivery Platform is an advantageous solution. This paper outlines the data handling within current M2M Communication Architectures, based on an Extended Floating Car Data use-case. On this basis, existing limitations, caused by opaque data, are discussed. Since data-dependent filter criteria are not realizable with current M2M subscribe/notify mechanisms, data acquisition can only be tailored to specific application requirements in a very limited way. This causes a high communication overhead, particularly for complex devices, like vehicles, potentially offering a vast amount of data at a high rate. We motivate data-dependent filter criteria e.g. with respect to subscribe/notify and subscription mediation capabilities. As a solution, this paper proposes making data transparent to the M2M Service Capability Layer and presents approaches to implement necessary enhancements.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122850764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The average equivocation of random linear binary codes in syndrome coding 综合征编码中随机线性二进制码的平均模糊
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845078
K. Zhang, M. Tomlinson, M. Z. Ahmed
{"title":"The average equivocation of random linear binary codes in syndrome coding","authors":"K. Zhang, M. Tomlinson, M. Z. Ahmed","doi":"10.1109/ICT.2014.6845078","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845078","url":null,"abstract":"This paper studies the security performance of random codes in the syndrome coding scheme. We propose theoretical analysis using a putative (n, k) code having the same distribution of syndrome probabilities as the ensemble of all (n, k) random codes to calculate the average equivocation of random codes, and compare the theoretical results with the simulation results generated from Monte Carlo analysis which shows that the theoretical method is precise. Moreover the analysis works well for long codes having large values of n - k, which are not amenable to Monte Carlo analysis. We present results showing that the longer the length of the code the higher the value of the average equivocation and the lower the value of the standard deviation of the equivocation. For code lengths in excess of 150 bits or so almost any random code will produce high levels of secrecy.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129903811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Partial channel overlay in moderate-scale MIMO systems using WH precoded OFDM 使用WH预编码OFDM的中等规模MIMO系统中的部分信道覆盖
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845072
Hua Fu, M. Crussiére, M. Hélard
{"title":"Partial channel overlay in moderate-scale MIMO systems using WH precoded OFDM","authors":"Hua Fu, M. Crussiére, M. Hélard","doi":"10.1109/ICT.2014.6845072","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845072","url":null,"abstract":"In this paper, we propose a multi-user orthogonal frequency-division multiplexing (OFDM) transmission scheme with partial channel reusing between users, suitable for multiple-input multiple-output (MIMO) systems with not-so-large antenna arrays. The spectrum efficiency is improved at the price of adding multiuser interference (MUI) which can be overcome by the multiplexing gain of MIMO. In addition, we propose to employ the spread spectrum OFDM (SS-OFDM) modulation with the Walsh-Hadamard (WH) codebook for such a multi-user system to further mitigate the MUI. The bit error rate (BER) performance of the proposed scheme in the additive white Gaussian noise (AWGN) channels is derived analytically and then verified through Monte-Carlo simulations. Moreover, the proposed SS-OFDM system with partial bandwidth reuse is compared with the OFDM-based solution in a moderate-scale MIMO system with equal gain combining (EGC) precoding. It is shown that the proposed SS-OFDM MIMO system outperforms the classical OFDM approach in frequency-selective fading channels when the number of transmit antennas remains moderate.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129912491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Enhanced inter-cell carrier aggregation with spread spectrum technique for next generation mobile systems 基于扩频技术的下一代移动系统增强小区间载波聚合
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845143
Genta Yoshizaki, K. Mori, K. Naito, Hideo Kobayashi
{"title":"Enhanced inter-cell carrier aggregation with spread spectrum technique for next generation mobile systems","authors":"Genta Yoshizaki, K. Mori, K. Naito, Hideo Kobayashi","doi":"10.1109/ICT.2014.6845143","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845143","url":null,"abstract":"In next generation mobile communication systems, the cell size reduction is unavoidable due to the transmission power limitation at user equipments (UEs). The small cell size accelerates traffic non-uniformity between cells, and this situation brings non-uniform transmission performance between cells across the system. The inter-cell carrier aggregation (CA) technique, which aggregates multiple component carriers (CCs) provided by both serving and its adjacent cells, has been proposed to overcome non-uniform traffic problem, and this scheme provides some capability of mitigating the non-uniform transmission performance. However, the mitigation of the non-uniform transmission performance is limited even when introducing the inter-cell CA. In this paper, an enhanced inter-cell CA scheme using variable spreading factor spread spectrum transmission is proposed to further mitigate non-uniform transmission performance between cells, and also improve user throughput performance. The computer simulation results demonstrate the effectiveness of the proposed scheme under non-uniform traffic environments.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124341892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Effect of Inter-Cell Inter-Radio Access Technology (RAT) interference on the performance of multi-RAT cellular systems 小区间无线接入技术(RAT)干扰对多小区无线接入系统性能的影响
2014 21st International Conference on Telecommunications (ICT) Pub Date : 2014-05-04 DOI: 10.1109/ICT.2014.6845136
Ahmed Alsohaily, E. Sousa
{"title":"Effect of Inter-Cell Inter-Radio Access Technology (RAT) interference on the performance of multi-RAT cellular systems","authors":"Ahmed Alsohaily, E. Sousa","doi":"10.1109/ICT.2014.6845136","DOIUrl":"https://doi.org/10.1109/ICT.2014.6845136","url":null,"abstract":"Containing interference within cellular communication systems requires the use of dedicated frequency bands to mitigate interference from other wireless systems. Based on this design principle, the Radio Frequency (RF) resources of a multi-Radio Access Technology (RAT) cellular system are apportioned between co-deployed RATs. However, traffic variations within multi-RAT systems result in the suboptimal utilization of RF resources under fixed, system-level spectrum allocation policies. On the other hand, flexible spectrum allocation policies that permit using the same frequency band to deploy different RATs at different locations introduce Inter-cell inter-RAT Interference (IRI). The potential impact of IRI prevents the use of flexible spectrum management techniques that disrupt system-level spectrum allocation in multi-RAT systems. This paper studies the effect of IRI on the performance of multi-RAT cellular systems employing Global System for Mobile Communications (GSM), High Speed Packet Access (HSPA) and Long Term Evolution (LTE). Detailed system level simulations are performed to measure the impact of deploying different RATs at different locations using the same frequency band.","PeriodicalId":154328,"journal":{"name":"2014 21st International Conference on Telecommunications (ICT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130217376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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