NDLI: Energy efficiency and queue stability in a two-way relay network

Content Provider	IEEE Xplore Digital Library
Author	Zhi Chen Teng Joon Lim Motani, M.
Copyright Year	2012
Description	Author affiliation: Dept. of Elect. & Comp. Eng., National Univ. of Singapore, Singapore (Zhi Chen; Teng Joon Lim; Motani, M.)
Abstract	In a recent paper, we demonstrated the minimization of instantaneous energy in a two-way relay network with digital network coding at the relay, through the optimization of the time-sharing fractions for each mode of transmission. In that work, the channel gains were assumed to be changing so slowly with time that queue stability required instantaneous channel throughput to be no smaller than the average packet arrival rate. In this paper, we obtain a water-filling solution that minimizes the long-term average (or ergodic) energy required to deliver any given pair of required rates while maintaining queue stability at all three nodes, in a fading channel. We also provide a detailed analysis of the queues at the relay using a random scheduling method that closely approximates the theoretical design of the deterministic algorithm, through a two-dimensional Markov chain model.
Starting Page	36
Ending Page	40
File Size	1393268
Page Count	5
File Format	PDF
ISBN	9781467320528
e-ISBN	9781467320542
DOI	10.1109/ICCS.2012.6406104
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-21
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Stability analysis Network coding Queueing analysis Optimization Markov processes Protocols queue stability Two-way relays network coding energy efficiency
Content Type	Text
Resource Type	Article

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