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BROADNETS
2005
IEEE
15 years 5 months ago
A rate adaptation algorithm for ieee 802.11 wlans based on Mac-Layer Loss Differentiation
— In a WLAN subject to variable wireless channel conditions, rate adaptation plays an important role to more efficiently utilize the physical link. However, the existing rate ada...
Qixiang Pang, Victor C. M. Leung, Soung Chang Liew
JSAC
2007
81views more  JSAC 2007»
14 years 11 months ago
Payload Length and Rate Adaptation for Multimedia Communications in Wireless LANs
— We provide a theoretical framework for cross-layer design in multimedia communications to optimize single-user throughput by selecting the transmitted bit rate and payload size...
Sayantan Choudhury, Jerry D. Gibson
CORR
2008
Springer
94views Education» more  CORR 2008»
14 years 11 months ago
Performance of Hybrid-ARQ in Block-Fading Channels: A Fixed Outage Probability Analysis
This paper studies the performance of hybrid-ARQ (automatic repeat request) in Rayleigh blockfading channels. The long-term average transmitted rate is analyzed in a fast-fading s...
Peng Wu, Nihar Jindal
GLOBECOM
2008
IEEE
15 years 6 months ago
Cross-Layer Design with Adaptive Modulation: Delay, Rate, and Energy Tradeoffs
— We present a crosslayer framework for optimizing the performance of wireless networks as measured by applications or upper layer protocols. The approach combines adaptive modul...
Daniel O'Neill, Andrea J. Goldsmith, Stephen P. Bo...
ICC
2008
IEEE
161views Communications» more  ICC 2008»
15 years 6 months ago
Channel Estimation and Adaptive M-QAM in Cognitive Radio Links
—Cognitive radios have the ability to sense their RF environment and adapt their transmission parameters to perform optimally in any situation. Part of this involves selecting th...
Alkan Soysal, Sennur Ulukus, T. Charles Clancy