TY - GEN
T1 - Throughput maximization of cooperative wireless mesh networks using directional antennas
AU - Pan, Miao
AU - Yue, Hao
AU - Li, Pan
AU - Fang, Yuguang
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2012
Y1 - 2012
N2 - Throughput maximization is a key challenge to numerous applications in wireless mesh networks (WMNs). As a potential solution, cooperative communications, which may increase link capacity by exploiting spatial diversity, has attracted a lot of attention. However, if link scheduling is considered, this transmission mode may perform worse than direct transmission in terms of end-to-end throughput, since the sending/receiving of cooperative relays incurs extra interferences. In this paper, we propose to employ directional antennas to alleviate those negative effects and comprehensively investigate the throughput maximization problem in cooperative WMNs. Regarding the features of cooperative communications and antenna modes (omnidirectional antennas or directional ones), we extend the links into cooperative links/general links, form an antenna based cooperative (ABC) conflict graph to characterize the interference relationship among those extended links, and design beamforming strategies w.r.t. link scheduling. Given all ABC independent sets in this graph, we mathematically formulate the end-to-end throughput maximization problem under cross-layer constraints and solve it by linear programming. Our simulation results show that the end-to-end throughput of cooperative WMNs can be notably improved, when transmission selection and antenna mode selection are jointly considered. © 2012 IEEE.
AB - Throughput maximization is a key challenge to numerous applications in wireless mesh networks (WMNs). As a potential solution, cooperative communications, which may increase link capacity by exploiting spatial diversity, has attracted a lot of attention. However, if link scheduling is considered, this transmission mode may perform worse than direct transmission in terms of end-to-end throughput, since the sending/receiving of cooperative relays incurs extra interferences. In this paper, we propose to employ directional antennas to alleviate those negative effects and comprehensively investigate the throughput maximization problem in cooperative WMNs. Regarding the features of cooperative communications and antenna modes (omnidirectional antennas or directional ones), we extend the links into cooperative links/general links, form an antenna based cooperative (ABC) conflict graph to characterize the interference relationship among those extended links, and design beamforming strategies w.r.t. link scheduling. Given all ABC independent sets in this graph, we mathematically formulate the end-to-end throughput maximization problem under cross-layer constraints and solve it by linear programming. Our simulation results show that the end-to-end throughput of cooperative WMNs can be notably improved, when transmission selection and antenna mode selection are jointly considered. © 2012 IEEE.
KW - Cooperative relays
KW - directional antennas
KW - flow routing
KW - link scheduling
KW - wireless mesh networks
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84871529813&origin=recordpage
U2 - 10.1109/ICCChina.2012.6356976
DO - 10.1109/ICCChina.2012.6356976
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9781467328159
T3 - 2012 1st IEEE International Conference on Communications in China, ICCC 2012
SP - 709
EP - 714
BT - 2012 1st IEEE International Conference on Communications in China, ICCC 2012
T2 - 2012 1st IEEE International Conference on Communications in China, ICCC 2012
Y2 - 15 August 2012 through 17 August 2012
ER -