Performance of OFDM-Based Dual-Hop Amplify-and-Forward Relaying
Authors:
- 4 September 2007
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Communications Letters
- Vol. 11 (9) , 726-728
Abstract
In this letter, the end-to-end BER performance of a dual-hop OFDM-based relay system is investigated. The relay terminal operates in the amplify-and-forward (AF) mode. We derive the bit error rate (BER) of AF relaying with average power scaling (APS) constraint valid for source-relay link high signal- to-noise ratio conditions. We also study a frequency diversity technique that improves the performance of single antenna AF-APS relaying. The theoretical BER expressions are verified by computer simulations for a 4-QAM modulated OFDM system.Keywords
This publication has 10 references indexed in Scilit:
- Equalization Techniques for Distributed Space-Time Block Codes With Amplify-and-Forward RelayingIEEE Transactions on Signal Processing, 2007
- Impact of receive diversity on the performance of amplify-and-forward relaying under APS and IPS power constraintsIEEE Communications Letters, 2006
- Hybrid Forwarding Scheme for Cooperative Relaying in OFDM Based Networks2006
- Bounds for multihop relayed communications in nakagami-m fadingIEEE Transactions on Communications, 2006
- A Chunk Based OFDM Amplify-and-Forward Relaying Scheme for 4G Mobile Radio Systems2006
- Equalization techniques for space-time coded cooperative systems2005
- Relay-based deployment concepts for wireless and mobile broadband radioIEEE Communications Magazine, 2004
- BER analysis of collaborative dual-hop wireless transmissionsElectronics Letters, 2004
- On the general BER expression of one- and two-dimensional amplitude modulationsIEEE Transactions on Communications, 2002
- Exact Distribution of the Product of Independent Generalized Gamma Variables with the Same Shape ParameterThe Annals of Mathematical Statistics, 1968