Achievable rate regions for two-way MIMO AF multiple-relay channels

Kyoung Jae Lee, Inkyu Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This paper investigates the achievable rate region of two-way amplify-and-forward (AF) relaying systems with multiple relays, where all nodes are equipped with multiple antennas. First, we find linear processing filters to optimize the weighted sum-rate for the two-way channels with sum power constraints. The proposed algorithm achieves the maximum weighted sum-rate by deriving the gradient expressions and iteratively applying the gradient descent method. Consequently, the proposed scheme outperforms the conventional methods in terms of the weighted sum-rate. Also, the achievable rate region is obtained by adjusting the weights in the proposed algorithm. It is observed from the ergodic rate region that channel reciprocity can improve the achievable sum-rate in two-way relay systems unlike one-way channels.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
DOIs
Publication statusPublished - 2011 Aug 29
Event2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Budapest, Hungary
Duration: 2011 May 152011 May 18

Other

Other2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring
CountryHungary
CityBudapest
Period11/5/1511/5/18

Fingerprint

Relay Channel
Amplify-and-forward
Weighted Sums
MIMO systems
Multiple-input multiple-output (MIMO)
Relay
Power Sum
Gradient Descent Method
Multiple Antennas
Reciprocity
Antennas
Processing
Optimise
Filter
Gradient
Vertex of a graph

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Applied Mathematics

Cite this

Achievable rate regions for two-way MIMO AF multiple-relay channels. / Lee, Kyoung Jae; Lee, Inkyu.

IEEE Vehicular Technology Conference. 2011. 5956466.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, KJ & Lee, I 2011, Achievable rate regions for two-way MIMO AF multiple-relay channels. in IEEE Vehicular Technology Conference., 5956466, 2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring, Budapest, Hungary, 11/5/15. https://doi.org/10.1109/VETECS.2011.5956466
Lee, Kyoung Jae ; Lee, Inkyu. / Achievable rate regions for two-way MIMO AF multiple-relay channels. IEEE Vehicular Technology Conference. 2011.
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