A new two-user cooperative transmission scheme with low-complexity FDE in SC-FDMA systems

Authors:
Xianxue Fan;Gang Wu;Wei Lin;Shaoqian Li
Affiliations:
National Key Lab of Communications, University of Electronic Science and Technology of China, Chengdu, Sichuan, China;National Key Lab of Communications, University of Electronic Science and Technology of China, Chengdu, Sichuan, China;National Key Lab of Communications, University of Electronic Science and Technology of China, Chengdu, Sichuan, China;National Key Lab of Communications, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

Citing 5
Cited 0

Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels

IEEE Transactions on Information Theory
Frequency domain equalization for single-carrier broadband wireless systems

IEEE Communications Magazine
Technical solutions for the 3G long-term evolution

IEEE Communications Magazine
From theory to practice: an overview of MIMO space-time coded wireless systems

IEEE Journal on Selected Areas in Communications
Analysis and performance of some basic space-time architectures

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.00

Visualization

Abstract

A new two-user cooperative transmission scheme with low-complexity frequency-domain equalization (FDE) for single carrier frequency division multiple access (SC-FDMA) systems in localized subcarrier mapping mode is proposed for uplink wireless transmission in this paper. At the destination, each user's information can be obtained with a simpler diversity combing and a lower-complexity FDE than existing schemes. In order to effectively utilize resource, the two users transmit their information using their own allocated transmission subcarriers. At the same time, they exchange information using each partner's allocated transmission subcarriers, and complete one cooperative process in two time slots with amplify-and-forward (AF) cooperative method. The proposed scheme could achieve full cooperative diversity over frequency-selective fading channel without multiple transmit antennas adopted at the users. Monte-Carlo simulation results verify that, with the same spectral efficiency, the proposed scheme could achieve performance gain by 2 dB than the distributed Alamouti-like space-time block codes (STBC) in cluster-based cooperative communication Single-carrier FDE (SC-FDE) systems.