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GLOBECOM
2006
IEEE
15 years 11 months ago
Adaptive Coding and Modulation for Hybrid ARQ Systems over Partially Observable Nakagami-m Fading Channels
— We study coding and modulation rate adaptation problem for HARQ systems with partially observable state from cross-layer viewpoint. The rate of convolutionally coded MQAM is ad...
Ashok K. Karmokar, Vijay K. Bhargava
NOSSDAV
2009
Springer
15 years 11 months ago
Adaptive overlay topology for mesh-based P2P-TV systems
In this paper, we propose a simple and fully distributed mechanism for constructing and maintaining the overlay topology in mesh-based P2P-TV systems. Our algorithm optimizes the ...
Richard John Lobb, Ana Paula Couto da Silva, Emili...
SIGMETRICS
2010
ACM
173views Hardware» more  SIGMETRICS 2010»
15 years 10 months ago
Channel fragmentation in dynamic spectrum access systems: a theoretical study
Dynamic Spectrum Access systems exploit temporarily available spectrum (‘white spaces’) and can spread transmissions over a number of non-contiguous sub-channels. Such methods...
Edward G. Coffman Jr., Philippe Robert, Florian Si...
PERCOM
2008
ACM
16 years 4 months ago
On-demand Video Streaming in Mobile Opportunistic Networks
Providing on-demand video streaming services to large numbers of nodes in mobile wireless networks is a challenging task. We propose MOVi (Mobile Opportunistic Video-on-demand), a...
Hayoung Yoon, JongWon Kim, Feiselia Tan, Robert Hs...
MOBIHOC
2008
ACM
16 years 4 months ago
Analyzing DISH for multi-channel MAC protocols in wireless networks
For long, node cooperation has been exploited as a data relaying mechanism. However, the wireless channel allows for much richer interaction between nodes. One such scenario is in...
Tie Luo, Mehul Motani, Vikram Srinivasan