Joint MMSE precoding design in multi-hop bi-directional MIMO relay systems
Authors:
- 1 October 2012
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1-5
Abstract
This paper investigates the problem of joint design of relay precoders and receivers based on the minimum mean-square-error (MMSE) criterion in multi-hop bi-directional multiple-input multiple-output (MIMO) amplify-and-forward (AF) relay systems. In contrast to the conventional research on two-way relay systems, we combine a multi-hop relay system with a bi-directional relay system which further enhances the system performance. By decoupling the original highly non-convex problem into three sub-problems, we propose an iterative algorithm to alternatively optimize relay precoders and receivers. Numerical simulation results show that the proposed iterative algorithm outperforms other algorithms in terms of bit-error-rate (BER).Keywords
This publication has 12 references indexed in Scilit:
- Joint Source and Relay Precoding Designs for MIMO Two-Way Relay Systems2011
- Delay and Capacity Tradeoff Analysis for MotionCastIEEE/ACM Transactions on Networking, 2011
- Optimality of diagonalization of multi-hop MIMO relaysIEEE Transactions on Wireless Communications, 2009
- Mobility increases the connectivity of K-hop clustered wireless networks2009
- Joint MMSE Transceiver Design in Non-Regenerative MIMO Relay SystemsIEEE Communications Letters, 2008
- Linear Transceiver Design in Nonregenerative Relays With Channel State InformationIEEE Transactions on Signal Processing, 2007
- Spectral efficient protocols for half-duplex fading relay channelsIEEE Journal on Selected Areas in Communications, 2007
- Design and analysis of linear distributed MIMO relaying algorithmsIEE Proceedings - Communications, 2006
- On the capacity of MIMO relay channelsIEEE Transactions on Information Theory, 2005
- Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channelsIEEE Transactions on Information Theory, 2003