2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC)最新文献

Throughput capacity of ALOHA MANETs ALOHA MANETs的吞吐量

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCCHINAW.2013.6670570

Yin Chen, Yulong Shen, Xiaohong Jiang, Jie Li

{"title":"Throughput capacity of ALOHA MANETs","authors":"Yin Chen, Yulong Shen, Xiaohong Jiang, Jie Li","doi":"10.1109/ICCCHINAW.2013.6670570","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2013.6670570","url":null,"abstract":"One major obstacle stunting the development and application of mobile ad hoc networks (MANETs) is the lack of a thorough understanding on the throughput capacity of these networks. Preliminary works regarding the exact capacity study of MANETs mainly focus on cell-partitioned networks, an oversimplified network model for practical MANETs. This paper studies the exact throughput capacity under a more realistic and practical network model for MANETs, where network nodes randomly move in a continuous unit square without cell-partition and a slotted ALOHA protocol is adopted for medium access control. For the considered ALOHA MANETs (A-MANETs), we first determine its exact throughput capacity based on the successful transmission probability (STP) and also derive the expected end-to-end delay for a capacity achieving routing algorithm. We then develop efficient closed-form approximations to both the STP and the exact throughput capacity in the concerned A-MANET under a popular local transmission scheme, based on which the corresponding capacity optimization issue is explored. Finally, simulation and numerical results are provided to validate the efficiency of our capacity model and to illustrate our theoretical findings.","PeriodicalId":121230,"journal":{"name":"2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129151346","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: 12

Research and implementation on demodulation algorithm of parameters-adjustable soft spread spectrum system in IOT 物联网中参数可调软扩频系统解调算法研究与实现

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCCHINAW.2013.6670574

Liu Yaqing, Lian Baowang

{"title":"Research and implementation on demodulation algorithm of parameters-adjustable soft spread spectrum system in IOT","authors":"Liu Yaqing, Lian Baowang","doi":"10.1109/ICCCHINAW.2013.6670574","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2013.6670574","url":null,"abstract":"The IOT (Internet of Things) is a global network infrastructure, linking physical and virtual objects through the exploitation of data capture and communication capabilities. The Soft Spread Spectrum (M-ary Spread Spectrum) has not only strong anti-interference ability of conventional Spread Spectrum, but also high bandwidth utilization of M-ary modulation. What's more, it has lower probability of intercept, and can adjust the communication rate and spreading gain. So it's suitable for IOT. Since the spreading code is a cyclic shift of the same sequence, FFT is proposed to get cross-correlation characteristics of the signal for demodulation algorithms, instead of the traditional multiple correlation accumulators demodulation algorithm, so that it can dynamically change the data rate and spreading gain in IOT communication system. To deal with the spreading code of arbitrary length, the new calculation of cross-correlation is designed with the cost of double length of FFT. To do so, the application of the proposed algorithm is expanded. The experimental verification based on FPGA platform shows that the algorithm can reach the theoretical level.","PeriodicalId":121230,"journal":{"name":"2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127947851","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

Spectrum management for small cell cognitive radio networks 小蜂窝认知无线网络的频谱管理

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCCHINAW.2013.6670562

Jia Liu, Pengbo Si, Huiqi Wang, Yanhua Zhang, Ruizhe Yang

引用次数: 0

Radio resource management for network assisted D2D in cellular uplink 蜂窝上行链路中网络辅助D2D的无线电资源管理

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCCHINAW.2013.6670586

Lu Qianxi, Miao Qingyu, Gábor Fodor, N. Brahmi

{"title":"Radio resource management for network assisted D2D in cellular uplink","authors":"Lu Qianxi, Miao Qingyu, Gábor Fodor, N. Brahmi","doi":"10.1109/ICCCHINAW.2013.6670586","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2013.6670586","url":null,"abstract":"Cellular network assisted Device-to-Device (D2D) communication has the potential to increase the network capacity, offload access and core network resources and reduce latency. To realize these potential gains and to ensure a win-win type of coexistence between the cellular and the D2D layer, there is a need to carefully design the procedures for radio resource management (RRM). This paper develops and evaluates low complexity radio resource management (RRM) algorithms that are based on practically feasible and well known measurements. These RRM algorithms include mode selection, power control, and resource allocation. First, the network assists D2D users on a coarse time scale to select D2D (direct) mode or cellular mode. Subsequently, the network informs the D2D users of tolerable power levels which cause minimal interference to the base station, and the possible resources that can be used for D2D communications. Based on this information, the D2D users act autonomously for executing the RRM functions. The simulation result shows that our approach to D2D RRM can harvest the offloading/proximity gain to the network.","PeriodicalId":121230,"journal":{"name":"2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130777149","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

Social network enhanced device-to-device communication underlaying cellular networks 社交网络在蜂窝网络的基础上增强了设备对设备的通信

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCChinaW.2013.6670590

Yanru Zhang, Lingyang Song, W. Saad, Z. Dawy, Zhu Han

引用次数: 31

Adaptive resource allocation and grouping for device-to-device communications underlaying cellular networks 蜂窝网络下设备对设备通信的自适应资源分配和分组

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCCHINAW.2013.6670578

Qiang Liu, Yanxiang Jiang

{"title":"Adaptive resource allocation and grouping for device-to-device communications underlaying cellular networks","authors":"Qiang Liu, Yanxiang Jiang","doi":"10.1109/ICCCHINAW.2013.6670578","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2013.6670578","url":null,"abstract":"In this paper, a new adaptive resource allocation and grouping scheme is proposed to enhance the capacity of device-to-device (D2D) systems underlaying cellular networks. In order to increase resource utilization, we propose to divide the outer region of the cell into multiple parts and the corresponding D2D pairs located in the symmetrical parts are designed to reuse the same cellular user equipment's (CUE's) resources. To further improve spectrum efficiency, three grouping modes for D2D pairs reusing the same resources are devised and these three modes are proposed to be employed adaptively according to the values of the channel gains between CUEs and base station (BS). Furthermore, by considering interference powers from CUEs to D2D UEs (DUEs) and channel gains of D2D pairs together, an equivalent channel gain is proposed to be exploited to select D2D pairs in symmetrical parts to reuse the same resources of CUEs. Simulation results show that the proposed scheme can increase the capacity of D2D systems up to 3.5 times compared with random resource allocation one.","PeriodicalId":121230,"journal":{"name":"2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134088291","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

Optimal resource allocation scheme in green cognitive radio networks 绿色认知无线网络中最优资源分配方案

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCCHINAW.2013.6670561

Huiqi Wang, Pengbo Si, Jia Liu, Yanhua Zhang

引用次数: 0

Energy efficiency of Unicast Support Multicast with QoS guarantee 单播能源效率支持组播，并保证QoS

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCCHINAW.2013.6670559

Zheng Chang, T. Ristaniemi

引用次数: 0

Rate boundaries and performance comparison of pure-full-duplex and half-duplex systems 纯全双工和半双工系统的速率边界和性能比较

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCCHINAW.2013.6670560

Yu Li, Bin Zhou, Jinling Du, Wei Li, Zhenhong Li, Haowen Wang, Hui Xu

{"title":"Rate boundaries and performance comparison of pure-full-duplex and half-duplex systems","authors":"Yu Li, Bin Zhou, Jinling Du, Wei Li, Zhenhong Li, Haowen Wang, Hui Xu","doi":"10.1109/ICCCHINAW.2013.6670560","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2013.6670560","url":null,"abstract":"Reliable co-channel bidirectional transmission in wireless networks is moving towards reality by employing the emerging full-duplex (FD) technology. Enhanced by FD-capable nodes, a future wireless network can be made up merely with pairs of bidirectional communicating nodes where each pair occupies a block of orthogonal resource to avoid interference, referred to as pure-FD system. In this paper, we derive close-form expressions for the pure-FD system models with or without Error Vector Magnitude (EVM) noise. Adopting the weighted sum-rate maximization algorithm and using simulations with MATLAB, we give simulation results of pure-FD's rate boundaries with joint optimization of power and bandwidth, and get the “FD workable area” where FD outperforms HD. Conventional frequency-division half-duplex(HD) system is present for comparison. Simulation results show that the rate boundary for FD system strongly depends on the self-interference attenuation capability of node, and there is a critical level where pure-FD performs the same with HD which is shown in our simulation. Besides, the simulation results with EVM show that the attenuation capability before baseband severely affects the rate boundary.","PeriodicalId":121230,"journal":{"name":"2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC)","volume":"94 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134255228","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

A green quasi-dynamic frequency resource division method for LTE-A relay systems LTE-A中继系统的绿色准动态频率资源划分方法

2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC) Pub Date : 2013-11-21 DOI: 10.1109/ICCCHINAW.2013.6670556

X. Su, Enchang Sun, M. Li, F. Yu, Yanhua Zhang

{"title":"A green quasi-dynamic frequency resource division method for LTE-A relay systems","authors":"X. Su, Enchang Sun, M. Li, F. Yu, Yanhua Zhang","doi":"10.1109/ICCCHINAW.2013.6670556","DOIUrl":"https://doi.org/10.1109/ICCCHINAW.2013.6670556","url":null,"abstract":"Due to the introduction of wireless relays, the performance of LTE-A system was enhanced. Meanwhile, more energy was expensed and more interference was brought in. This is because the frequency used by relays may be the same or adjacent with the other relays or base stations. And the more stations deployed in a cell, the more energy consumed. In this paper, we proposed a novel green quasi-dynamic frequency resource division method for OFDMA download link. This method is suitable for the situation where the frequency resources are not continuous. And the special idle resources within cell are quasi-dynamically allocated, according to the load situations of base station and relays, to make the frequency division variable. With the uniform division and reasonable allocation based on the distribution of stations, the co-channel and adjacent-channel interference can be decreased effectively. Moreover, if possible, the relay stations with little users' access can be switched off and these users will be served by the adjacent relays, so that the energy consumption can be reduced further and some interference can also be eliminated.","PeriodicalId":121230,"journal":{"name":"2013 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134510263","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