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GLOBECOM
2008
IEEE
15 years 4 months ago
Performance Improvement of Voice over Multihop 802.11 Networks
—Extensive studies on supporting voice traffic over wireless 802.11 networks have been carried out in the literature. Most of them were focused only on one hop infrastructure mo...
Chenhui Hu, Youyun Xu, Wen Chen, Xinbing Wang, Yun...
ICC
2007
IEEE
115views Communications» more  ICC 2007»
15 years 4 months ago
Space-Time Coded Cooperative Multicasting with Maximal Ratio Combining and Incremental Redundancy
Abstract— The performance of wireless multicasting is negatively affected by multipath fading. To improve reliability, cooperation among the nodes of the network can be used to c...
Aitor del Coso, Osvaldo Simeone, Yeheskel Bar-Ness...
MOBIWAC
2009
ACM
15 years 2 months ago
Adaptive, direction-aware data dissemination for diverse sensor mobility
We consider sensor networks where the sensor nodes are attached on entities that move in a highly dynamic, heterogeneous manner. To capture this mobility diversity we introduce a ...
Azzedine Boukerche, Dionysios Efstathiou, Sotiris ...
CORR
2010
Springer
117views Education» more  CORR 2010»
14 years 10 months ago
Relay Assisted Cooperative OSTBC Communication with SNR Imbalance and Channel Estimation Errors
In this paper, a two-hop relay assisted cooperative Orthogonal Space-Time Block Codes (OSTBC) transmission scheme is considered for the downlink communication of a cellular system,...
Bo Niu, Mihaela C. Beluri, Zinan Lin, Prabhakar Ch...
CISS
2008
IEEE
15 years 4 months ago
Effects of cooperation on the secrecy of multiple access channels with generalized feedback
—We investigate the effects of user cooperation on the secrecy of multiple access channels with generalized feedback (MAC-GF). We show that cooperation can increase the achievabl...
Ersen Ekrem, Sennur Ulukus