... IEEE Global Communications Conference. IEEE Global Communications Conference最新文献_第9页

Precoding strategy based on SLR for secure communication in MUME wiretap systems 基于单反的MUME窃听系统安全通信预编码策略

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503208

Kun Xie, Wen Chen

引用次数: 4

Greedy strategy for network coding based reliable broadcast in wireless mesh networks 无线网状网络中基于可靠广播的贪婪网络编码策略

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6504017

Xiaobin Tan, Hao Yue, Yuguang Fang, Wenfei Cheng

{"title":"Greedy strategy for network coding based reliable broadcast in wireless mesh networks","authors":"Xiaobin Tan, Hao Yue, Yuguang Fang, Wenfei Cheng","doi":"10.1109/GLOCOM.2012.6504017","DOIUrl":"https://doi.org/10.1109/GLOCOM.2012.6504017","url":null,"abstract":"Reliable broadcast is an important communication primitive for wireless mesh networks, which has many applications such as multimedia services and software upgrade. Recently, network coding is introduced into reliable broadcast to enhance the throughput of data transmissions. Existing network coding based reliable broadcast schemes, such as Pacifier and R-Code, fail to take advantage of the unique characteristic of reliable broadcast or the broadcast nature of wireless transmissions, which leads to redundant transmissions and performance degradation. In this paper, we propose a greedy strategy for network coding based reliable broadcast, which is called GreedyCode. GreedyCode opportunistically selects the forwarders with the highest transmission efficiency to transmit the encoded packets while the neighbors just listen. In order to measure the efficiency of broadcast transmission of a node, we also define a metric named One-hop Broadcast Throughput (OBT), which considers not only the current reception status of the destinations but also the quality of the broadcast link. Because GreedyCode only needs the information of its one-hop neighbors, so it can be distributed realized. The simulation results show that GreedyCode achieves 100% packet delivery ratio (PDR) and significantly reduces the number of transmissions and the broadcast delay.","PeriodicalId":72021,"journal":{"name":"... IEEE Global Communications Conference. IEEE Global Communications Conference","volume":"6 1","pages":"5627-5632"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81699700","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

Toward MAC Protocol Service over the air 无线MAC协议服务

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503154

Tae-Suk Kim, T. Park, M. Sha, Chenyang Lu

{"title":"Toward MAC Protocol Service over the air","authors":"Tae-Suk Kim, T. Park, M. Sha, Chenyang Lu","doi":"10.1109/GLOCOM.2012.6503154","DOIUrl":"https://doi.org/10.1109/GLOCOM.2012.6503154","url":null,"abstract":"With the rapid permeation of smartphones and wireless sensors in our society, smartphones are poised to become personal hubs connecting wireless sensors with users and the Internet. Due to frequent changes to applications and network conditions, wireless networks connecting a personal hub and wireless sensors must meet time-varying QoS requirements at minimal energy cost. This paper presents the architecture of a novel Protocol Service System (PSS) towards the vision of protocol service over the air. In contrast to traditional wireless networks where a single MAC protocol is statically selected a priori, PSS switches among multiple MAC protocols at run time to dynamically optimize power efficiency subject and meet current QoS requirements. To meet the memory constraint on wireless sensors PSS employs a component-based reconfigurable MAC architecture to support multiple MAC protocols at significantly reduced memory footprint through component sharing. The feasibility of PSS has been demonstrated through a proof-of-concept implementation of the PSS architecture and the development of a personal hub prototype running the Android OS.","PeriodicalId":72021,"journal":{"name":"... IEEE Global Communications Conference. IEEE Global Communications Conference","volume":"15 1","pages":"451-457"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85509026","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

Design and analysis for reliable broadcast transmission in energy harvesting networks 能量收集网络中可靠广播传输的设计与分析

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503367

Ching-Chun Kuan, Hung-Yu Wei

引用次数: 5

Quasi-greedy geographic routing in wireless networks 无线网络中的准贪婪地理路由

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503082

J. Tsai, Yen-Cheng Li

{"title":"Quasi-greedy geographic routing in wireless networks","authors":"J. Tsai, Yen-Cheng Li","doi":"10.1109/GLOCOM.2012.6503082","DOIUrl":"https://doi.org/10.1109/GLOCOM.2012.6503082","url":null,"abstract":"Greedy forwarding combined with planar graph routing exploits minimal local position information to achieve reliable packet delivery in wireless networks. However, it is at the expense of path hop counts and traffic loads converging on links dictated by a chosen planar graph traversal scheme to bypass network holes. To mitigate these negative factors for delay-sensitive traffic service, our forwarding scheme further utilizes a simple hypothesis test based on local information to partition the set of candidate neighborhood nodes for packet relay into two subsets. One is a preferable subset containing nodes more likely located in a dense area of nodes and less likely to be a local minimum for greedy forwarding while the other contains the rest. The preferable subset has priority over the other one in the process of greedy forwarding. Consequently, our geographic routing scheme even embodies the feature of quasi greedy for forwarding packets but does achieve the goal of reducing routing hop counts. It only requires an extra complexity at each node to compute a representative angle that characterizes the node and to interchange with neighborhood nodes the angle information in addition to the location information needed normally.","PeriodicalId":72021,"journal":{"name":"... IEEE Global Communications Conference. IEEE Global Communications Conference","volume":"5 1","pages":"8-13"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83441196","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

On Gaussian Multiple Access Channel with Signal Dependent Noise 具有信号相关噪声的高斯多址信道研究

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503798

Hai Li, Y. Liu

{"title":"On Gaussian Multiple Access Channel with Signal Dependent Noise","authors":"Hai Li, Y. Liu","doi":"10.1109/GLOCOM.2012.6503798","DOIUrl":"https://doi.org/10.1109/GLOCOM.2012.6503798","url":null,"abstract":"The motivation of this work is to examine how well methods, such as successive interference cancellation and interference alignment from information theoretic solution, work in real-world where the received signal is quantized for digital processing. As a first step, we consider Gaussian Multiple Access Channels with the quantization noise modeled as Gaussian noise, whose variance depends on the received signal power at the receiver. We call this model Gaussian Multiple Access Channel with Signal Dependent Noise. The achievable rate region of this model is given under finite transmitted signal power constraint, where the achievable scheme could be successive interference cancellation (SIC). This region is outer bounded by a finite region with unlimited received signal power, where the achievable scheme is time division multiple access (TDMA). Thus, one way to measure the usefulness of successive interference cancellation is to study the gap between the SIC region and the TDMA region under finite power constraints. For the symmetric maximum signal to channel noise ratio (SCNR) case, where the maximum SCNR of all users are the same, we show that the gap between the SIC region and the TDMA region is within 0.5 bits for any number of users. Furthermore, for this case, if the maximum quantization noise power due to one user is stronger than the channel noise power, then the sum rate difference between the SIC region and the TDMA region is within 0.5 bits. For the asymmetric maximum SCNR case, the gap can be small when all users have high SCNR (e.g., 30dB), where the receiver is equipped with a low precision ADC (e.g., 2–3 bits).","PeriodicalId":72021,"journal":{"name":"... IEEE Global Communications Conference. IEEE Global Communications Conference","volume":"12 1","pages":"4326-4331"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86301695","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

Timing synchronization reciprocity error cancellation in OFDM/TDD coordinated multi-point transmission system OFDM/TDD协调多点传输系统的定时同步互易误差消除

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503870

Zheqi Gu, Ning Wei, Zhong-pei Zhang

引用次数: 0

Dual-band dual-polarized antenna array for beam selection MIMO WLAN 用于波束选择的双频双极化天线阵列

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503873

Wen-Chao Zheng, Long Zhang, Qing-Xia Li, Yuan Zhou, Rong Rong

引用次数: 2

BER analysis for MMSE-FDE-based interleaved SC-FDMA systems over Nakagami-m fading channels 基于mmse - fde的交错SC-FDMA系统在Nakagami-m衰落信道上的误码率分析

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503909

Miaowen Wen, Xiang Cheng, Zhongshan Zhang, Xiaohui Duan, B. Jiao

引用次数: 1

Optimal beamforming for MIMO decode-and-forward relay channels MIMO译码转发中继信道的最佳波束形成

... IEEE Global Communications Conference. IEEE Global Communications Conference Pub Date : 2012-12-01 DOI: 10.1109/GLOCOM.2012.6503835

Zhengfeng Xu, Pingyi Fan, Hong-Chuan Yang, Ke Xiong, M. Lei, Su Yi

引用次数: 4