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

Kyoung Jae Lee; Inkyu Lee

doi:10.1109/VETECS.2011.5956466

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

Kyoung Jae Lee, Inkyu Lee

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Proceedings
DOIs	https://doi.org/10.1109/VETECS.2011.5956466
Publication status	Published - 2011
Event	2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Budapest, Hungary Duration: 2011 May 15 → 2011 May 18

Publication series

Name	IEEE Vehicular Technology Conference
ISSN (Print)	1550-2252

Other

Other	2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring
Country/Territory	Hungary
City	Budapest
Period	11/5/15 → 11/5/18

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/VETECS.2011.5956466

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title = "Achievable rate regions for two-way MIMO AF multiple-relay channels",

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.",

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note = "2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring ; Conference date: 15-05-2011 Through 18-05-2011",

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AU - Lee, Kyoung Jae

AU - Lee, Inkyu

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N2 - 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.

AB - 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.

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M3 - Conference contribution

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T3 - IEEE Vehicular Technology Conference

BT - 2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring - Proceedings

T2 - 2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring

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ER -

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

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