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2012 1st IEEE International Conference on Communications in China (ICCC)最新文献

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Adaptive multiuser MIMO-OFDM QoS-based scheduler using virtual channel state information 使用虚拟信道状态信息的自适应多用户MIMO-OFDM qos调度器
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356862
K. Hassan, A. Filip, W. Henkel
{"title":"Adaptive multiuser MIMO-OFDM QoS-based scheduler using virtual channel state information","authors":"K. Hassan, A. Filip, W. Henkel","doi":"10.1109/ICCChina.2012.6356862","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356862","url":null,"abstract":"We propose an adaptive multiuser QoS-based scheduler based on the users' channel measurements. In order to mitigate the complexity that results from computing non-codebook based beamformers for possibly infeasible users, we propose to preselect the optimal users using a virtual signal-to-noise ratio (vSNR). This is computed assuming non-interfering users and a total power constraint. Solely depending on vSNR, we obtain thresholds that fulfill the equivalent SINR constraints for a different number of users. In this paper, vSNR thresholds are utilized to develop a fast adaptive multiuser scheduling routine. Finally, a performance comparison to the unscheduled case will be demonstrated in the presence of channel state information uncertainty as well as with perfect channel information.","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125900244","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 conflict avoid method between Load Balancing and Mobility Robustness Optimization in LTE LTE中负载均衡与移动性鲁棒性优化的冲突避免方法
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356868
Yun Li, Man Li, Bin Cao, Wenjing Liu
{"title":"A conflict avoid method between Load Balancing and Mobility Robustness Optimization in LTE","authors":"Yun Li, Man Li, Bin Cao, Wenjing Liu","doi":"10.1109/ICCChina.2012.6356868","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356868","url":null,"abstract":"In order to resolve the conflict between Load Balancing (LB) and Mobility Robustness Optimization (MRO) in Long Term Evolution (LTE) networks, a conflict avoid method has been proposed. However, the speed of users is neglected in the existing scheme, which has an obvious effect on system performance. To this end, we propose a new method, called the optimal conflict avoidance (OCA), which can set the handover range of LB dynamically considering the movement of users. The numerical results validate the effectiveness of our proposed OCA in terms of network throughput, Call Blocking Ratio (CBR) and Radio Link Failure (RLF).","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"220 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122334935","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: 13
Cloud computing provisioning over Passive Optical Networks 无源光网络的云计算供应
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356888
Yuanqiu Luo, F. Effenberger, Meng Sui
{"title":"Cloud computing provisioning over Passive Optical Networks","authors":"Yuanqiu Luo, F. Effenberger, Meng Sui","doi":"10.1109/ICCChina.2012.6356888","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356888","url":null,"abstract":"This paper presents a novel network architecture to provide cloud computing using Passive Optical Networks (PONs). It promotes a new application model of PON, especially for the design and development of next generation PONs. The attractive features include data-plane provisioning in addition to traditional transmission-pipe functionality, a new way to subsidize access network deployment investment, as well as high-speed fiber optic resource virtualization. We investigate this new architecture's feasibility by studying PON processing, storage and interconnection capabilities. Based on the feasibility study, we further explore the infrastructure as a service (IaaS) provisioning over PONs. The PON cloud performance is evaluated from two aspects: compute capability and storage capacity. Detailed analysis shows that cloud capability is determined by the PON configuration. Relevant parameters are ONU memory capacity, ONU CPU processing capability, OLT memory capacity, OLT CPU processing capability, PON port split, PON port density, OLT card density. Our result shows that PON cloud is an attractive value-added implementation of high-speed optic-fiber access systems.","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130644189","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: 29
Adaptive soft frequency reuse scheme for inbuilding dense femtocell networks 基于自适应软频率复用的密集飞蜂窝网络
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356941
Jiming Chen, Peng Wang, Jie Zhang
{"title":"Adaptive soft frequency reuse scheme for inbuilding dense femtocell networks","authors":"Jiming Chen, Peng Wang, Jie Zhang","doi":"10.1109/ICCChina.2012.6356941","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356941","url":null,"abstract":"Femtocell networks have emerged as a key technology in residential, office building or hotspot deployments that can significantly improve the coverage and performance of next-generation wireless networks. But, in the co-channel deployment scenarios, dense inter-femto interference might significantly deteriorate the overall system performance. In this paper, a new adaptive soft frequency reuse scheme in the dense femtocell networks is proposed where multiple dominant interference from dense femtocells is classified into a number of groups, and different frequency reuse factors and transmit powers for these groups are adjusted adaptively to mitigate the mutual interference. Simulation results show the proposed scheme yields great performance gains in terms of the spectrum efficiency relative to the legacy soft frequency reuse and universal frequency reuse.","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130526092","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: 11
Chernoff information azimuth spectrum in distributed sensor networks 分布式传感器网络中的Chernoff信息方位谱
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356985
Yifan Chen
{"title":"Chernoff information azimuth spectrum in distributed sensor networks","authors":"Yifan Chen","doi":"10.1109/ICCChina.2012.6356985","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356985","url":null,"abstract":"Consider a distributed sensor network (DSN) with randomly deployed sensors for binary detection of a phenomenon of interest (PoI). A data fusion center (which may be a sensor itself) monitors the PoI using both the directly acquired PoI data and the wireless communication signals conveying binary decisions about the PoI from other distributed sensors. To address this problem, we look into a PoI with specified statistics and present the modeling paradigm of Chernoff information azimuth spectrum (CIAS) to provide a compact, space-domain representation of asymptotic error exponents in DSNs. This school of thought applies an analogous approach to the description method of directional multipath channels. The above theoretical framework is then elaborated in light of geometrically-based modeling of sensor placement. Finally, we briefly explain the potential applications of the proposed methodology in terms of DSN performance evaluation, simulation and channel measurement.","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114982425","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
Contention resolution and channel estimation in satellite random access channels 卫星随机接入信道中的争用解决与信道估计
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356947
Lei Xiao, L. Cottatellucci
{"title":"Contention resolution and channel estimation in satellite random access channels","authors":"Lei Xiao, L. Cottatellucci","doi":"10.1109/ICCChina.2012.6356947","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356947","url":null,"abstract":"We consider the random access channel (RACH) of a multi-beam satellite system with universal frequency reuse. We benefit from the spatial diversity and the strong directivity of multiple antennas at the satellite to resolve contentions and perform channel estimation. We propose two approaches to detect active satellite terminals (ST) and estimate the channel coefficients of some or all the colliding STs: Grid Reduction (GR) and Successive Channel Cancelation (SCC) algorithm. The performance of the proposed approaches is assessed by numerical results and compared with the conventional satellite RACH system. Both approaches outperform the conventional RACH with Slotted-ALOHA and SCC algorithm shows better performance than GR approach.","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115042767","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
On codebook design for distributed relay beamforming network 分布式中继波束形成网络的码本设计
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356901
Min Zheng, Min Dong
{"title":"On codebook design for distributed relay beamforming network","authors":"Min Zheng, Min Dong","doi":"10.1109/ICCChina.2012.6356901","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356901","url":null,"abstract":"We study the problem of codebook design for quantized distributed relay beamforming under individual relay power constraint in a cooperative relay network. The received SNR is used as the design metric. We study two types of codebook design: phase-only codebook where each relay uses full power, and codebook with power control where relay power and phase need to be jointly considered. For the former, we adopt Grassmannian line packing criterion under equal gain constraint, and compare the performance with that under the generalized Lloyd Algorithm for optimal codebook design. For codebook with power control, the generalized Lloyd Algorithm can be used for the optimal codebook design, but incurs high complexity. We propose a low-complexity suboptimal method, which can directly use the optimal power control solution for perfect channel knowledge under the individual power constraint. Through simulation study, it is found that it is more beneficial to use codebook with power control over codebook without power control when relays are closer to destination, instead of the source.","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123254484","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
β-PSR: A Partial Spectrum Reuse scheme for two-tier heterogeneous cellular networks β-PSR:一种面向两层异构蜂窝网络的部分频谱复用方案
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356926
D. Cao, Sheng Zhou, Z. Niu
{"title":"β-PSR: A Partial Spectrum Reuse scheme for two-tier heterogeneous cellular networks","authors":"D. Cao, Sheng Zhou, Z. Niu","doi":"10.1109/ICCChina.2012.6356926","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356926","url":null,"abstract":"In this paper, we consider a Partial Spectrum Reuse (PSR) scheme, namely “β-PSR”, to improve spectrum efficiency of two-tier heterogeneous cellular networks, in which each micro Base Station (BS) occupies a uniform portion β of the whole system spectrum randomly and independently. We analyze the optimal PSR factor β to minimize service outage probability, which is not in an explicit form. Then a closed-form limit of the PSR factor is derived when the ratio of the user data rate requirement over the system bandwidth is approaching zero. This limit is an explicit function of the traffic intensity, the macro/micro BS density and their transmit power. Our numerical results also show that for most current rate requirements, the optimal PSR factor is well approximated by our derived limit. This motivates the design of an adaptive PSR scheme with near-optimal performance, which only depends on statistical network information.1.","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114824862","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
Relay selection and power allocation based on incremental relaying for two-way relay network with asymmetric traffics 基于增量中继的非对称双向中继网络中继选择与功率分配
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356954
Zhi Zhang, Ming Zhao, Sihai Zhang, Wuyang Zhou
{"title":"Relay selection and power allocation based on incremental relaying for two-way relay network with asymmetric traffics","authors":"Zhi Zhang, Ming Zhao, Sihai Zhang, Wuyang Zhou","doi":"10.1109/ICCChina.2012.6356954","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356954","url":null,"abstract":"Most of existing studies about two-way relay network rely on the assumption that two sources transmit with symmetric traffics, which is often unsatisfied in practical application. In this paper, we focus on asymmetric traffics for two-way relay network, and investigate how to minimize system outage probability. To achieve this objective, we first propose a strategy to combine relay selection (RS) and incremental relaying (IR), which is referred to as Proportional Max-Min selection plus Asymmetric Incremental Relaying (PMM-AIR). According to the expression of system outage event, we propose an Optimal-PMM (O-PMM) RS criterion that minimizes outage probability. Based on PMM-AIR strategy, we propose an optimal power allocation (OPA) scheme to achieve minimum outage probability. We also propose suboptimal alternatives for both O-PMM and OPA, i.e. Suboptimal-PMM (S-PMM) and suboptimal power allocation (SPA), to reduce overhead. Simulation results show that the suboptimal alternative for O-PMM (or OPA), i.e. S-PMM (or SPA), only causes trivial performance degradation.","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121739999","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: 7
Improving Content-Centric networks performance with progressive, diversity-load driven caching 通过渐进式、多样性负载驱动的缓存改进以内容为中心的网络性能
2012 1st IEEE International Conference on Communications in China (ICCC) Pub Date : 2012-11-26 DOI: 10.1109/ICCChina.2012.6356996
Jason Min Wang, B. Bensaou
{"title":"Improving Content-Centric networks performance with progressive, diversity-load driven caching","authors":"Jason Min Wang, B. Bensaou","doi":"10.1109/ICCChina.2012.6356996","DOIUrl":"https://doi.org/10.1109/ICCChina.2012.6356996","url":null,"abstract":"Today, the main usage of the Internet has become increasingly about content generation, sharing, retrieval and massive distribution. Widely used P2P applications, UserGenerated Content (UGC) (e.g., Youtube, Flickr) and increasingly popular Social Networks make the Internet service model become more content-oriented than host-oriented as it has been this far. To match the Internet infrastructure to this service model, a new Internet architecture has been proposed under the generic name of Content-Centric networking (CCN, see also Named-data Networking or NDN). One of the main features of this architecture is its ability to cache packets in intermediate routers to take advantage of spatio-temporal locality in serving multiple requests for the same content, reducing thus considerably the transit traffic. In this paper, we propose a new in-network caching scheme for CCN and evaluate its performance by comparing it to that of the default proposed policy via simulation.","PeriodicalId":154082,"journal":{"name":"2012 1st IEEE International Conference on Communications in China (ICCC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114289530","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
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