Cross-Layer Design of Optimal Adaptation Technique over Selection-Combining Diversity Nakagami-m Fading Channels

TitleCross-Layer Design of Optimal Adaptation Technique over Selection-Combining Diversity Nakagami-m Fading Channels
Publication TypeConference Paper
Year of Publication2008
AuthorsKarmokar, A. K., and V. K. Bhargava
Conference NameGlobal Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Pagination1 -5
Date Publishednov.
Keywordsadaptive modulation, adaptive modulation constellation, antennas, bit error rate, buffer state, cross-layer design, delay rate, diversity reception, error statistics, future wireless network, high data rate transmission, Markov modulated Poisson decision process traffic, Markov processes, Nakagami channels, optimal channel-dependent dynamic adaptation policy, packet overflow rate, radio networks, selection-combining antenna diversity Nakagami-m fading channel, telecommunication traffic, throughput maximization, transmission power minimization

Adaptive modulation and antenna diversity are two important enabling techniques for future wireless network to meet demand for high data rate transmission. We study a Markov decision process based cross-layer design of optimal adaptation policy over selection-combining Nakagami-m fading channel for Markov modulated Poisson process (MMPP) traffic. Unlike most of the channel-dependent adaptation policy in the literature, proposed policy chooses modulation constellation dynamically depending on the traffic and buffer states in addition to channel state. Proposed cross-layer dynamic adaptation policy minimizes transmission power, maximizes throughput, and also guarantees target bit error rate, delay and packet overflow rate requirements for the application being considered.


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