Joint Optimization for One and Two-Way MIMO AF Multiple-Relay Systems

Lee, Kyoung-Jae; Sung, Hyun Hwan; Park, Eunsung; Lee, Inkyu

doi:10.1109/twc.2010.102210.091021

Cited by 193 publications

(132 citation statements)

References 28 publications

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“…양방향 릴레이(two-way relay) 통신 방식은 중계 전송에서 필연적으로 발생하는 주파수 효율의 손실을 극복할 수 있는 방안으로 제안되었다 [14,15] . 라고도 부른다 [16][17][18] . 지금까지 연구들은 양방향 중계 전송 방식에서 양 단말 기기가 모두 자기간섭이 가능 한 경우를 주로 고려하였다 [14][15][16][17][18] .…”

Section: ⅰ 서 론 릴레이(Relay)를 이용하여 송신신호를 재전송하는unclassified

“…지금까지 연구들은 양방향 중계 전송 방식에서 양 단말 기기가 모두 자기간섭이 가능 한 경우를 주로 고려하였다 [14][15][16][17][18] . 하려고 한다 [17,18] . 양의 상수값으로 설정한다 [19] .…”

Section: ⅰ 서 론 릴레이(Relay)를 이용하여 송신신호를 재전송하는unclassified

“…문제 ( [17] 방식의 전송률, 그리고 한 방향 중계 방식에서의 최대채널용량(one-way capacity) [11] 과 단순증폭방식(one-way naive) [11] 의 성능을 각각 비 교한다.…”

Section: Gfhh F G Gfgg F G Gff G I Gfgg F G Gff G I Hfgg F H Hff H I unclassified

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Two-Way MIMO AF Relaying Methods Having a Legacy Device without Self-Interference Cancellation

Lee¹

2017

The Journal of Korean Institute of Communications and Informati

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Key Words : Two-way relay, self-interference, legacy device, MIMO, precoding ABSTRACTIn this paper, two-way amplify-and-forward relay methods are investigated where two terminals and one relay node are equipped with multiple antennas. In two-way relay channels, it is assumed that one terminal can eliminate its own self-interference but the other cannot. For this channel, we first maximize the sum-rate performance by employing an iterative gradient descent (GD) algorithm. Then, a simple singular value decomposition (SVD) based block triangularization is developed to null the self-interference. Simulation results show the proposed methods outperform the conventional schemes for various environments.

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Section: ⅰ 서 론 릴레이(Relay)를 이용하여 송신신호를 재전송하는unclassified

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Two-Way MIMO AF Relaying Methods Having a Legacy Device without Self-Interference Cancellation

Lee¹

2017

The Journal of Korean Institute of Communications and Informati

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“…Two-way or bi-directional relay systems have drawn increasing research attention, since they overcome the potential spectral efficiency loss of one-way relaying scheme [1]- [3]. The system supports two user-terminals acting as Source Nodes (SNs) that want to exchange their information with the aid of a Relay Node (RN).…”

Section: Introductionmentioning

confidence: 99%

EXIT-Chart-Aided Joint Source Coding, Channel Coding, and Modulation Design for Two-Way Relaying

Aljohani

Maunder

et al. 2013

IEEE Trans. Veh. Technol.

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Abstract-In this contribution, we have proposed and investigated an attractive Joint Source-coding, Channel-coding and Modulation (JSCM) scheme for a two-way relaying system. We commence by quantifying the achievable capacity of the corresponding two-way relay channel, before proposing low-complexity source coding schemes for concatenation with bandwidth-and power-efficient coded modulation schemes. Extrinsic Information Transfer (EXIT) charts is used to investigate the decoding convergence of the joint source and channel decoder as well as for the overall system design. The quality of the decoded source signals is quantified using the Bit-Error Ratio (BER) metric. It is found that the two-way relay based JSCM scheme is capable of attaining a combined coding and relaying gain of 5.7 dB over the conventional non-cooperative JSCM scheme, when communicating over uncorrelated Rayleigh fading channels in an outdoor environment.

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“…The relay node may adopt an amplify-and-forward (AF) protocol [1] or a decode-and-forward (DF) protocol [2] . The DF scheme can be improved by employing physical layer network coding (PNC) [3] in the relay node, which completes the two-way communications within two phases.…”

Section: ⅰ Introductionmentioning

confidence: 99%

Exact BER Analysis of Physical Layer Network Coding for Two-Way Relay Channels

Park¹,

Choi²,

Ahn³

et al. 2012

The Journal of Korean Institute of Communications and Informati

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Physical layer network coding (PNC) was first introduce by Zhang et al. for two-way relay channels (TWRCs). By utilizing the PNC, we can complete two-way communications within two time slots, instead of three time slots required in non-PNC systems. Recently, the upper and lower bounds for a bit error rate (BER) of PNC have been analyzed for fading channels. In this paper, we derive an exact BER of the PNC for the TWRC over fading channels. We determine decision regions based on the nearest neighbor rule and partition them into several wedge areas to apply the Craig's polar coordinate form for computing the BER. We confirm that our derived analysis accurately matches with the simulation results.

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Joint Optimization for One and Two-Way MIMO AF Multiple-Relay Systems

Cited by 193 publications

References 28 publications

Two-Way MIMO AF Relaying Methods Having a Legacy Device without Self-Interference Cancellation

Two-Way MIMO AF Relaying Methods Having a Legacy Device without Self-Interference Cancellation

EXIT-Chart-Aided Joint Source Coding, Channel Coding, and Modulation Design for Two-Way Relaying

Exact BER Analysis of Physical Layer Network Coding for Two-Way Relay Channels

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