Green multi-hop cooperative wireless communication with signal space diversity

• Published in: International journal of electronics and communications Vol. 68; no. 12; pp. 1247 - 1252
• Main Authors: Zaheer, Saima, Sohaib, Sarmad
• Format: Journal Article
• Language: English
• Published: Elsevier GmbH 01-12-2014
• Subjects: Multi-hop transmission; QPSK rotation; Signal space cooperative communication; Signal space diversity; Signal space diversity; Multi-hop transmission; Signal space cooperative communication; QPSK rotation
• ISSN: 1434-8411; 1618-0399
• DOI: 10.1016/j.aeue.2014.07.005

The cooperative communication in wireless multi-hop networks is a reliable energy efficient mechanism that mitigates the effects of channel fading and improves the performance and throughput of the systems. In this paper, green cooperative multi-hop scheme is proposed by employing signal space diversity (SSD). The proposed scheme offers a significant improvement in performance of the regenerative multi-hop networks without the requirement of extra bandwidth or power. The expressions for the average end to end bit error probability of the multi-hop networks employing the SSD scheme is derived. The optimal relay location for a better performance and the total energy consumption of the scheme is also probed. The simulation results show that the proposed scheme provides better quality of service and is more energy efficient compared to the conventional decode and forward scheme in single-hop as well as multi-hop situations.