Performance Analysis of HARQ Transmission in Cooperative DF Relaying Systems

Authors:
Kan Zheng;Lijie Hu;Wenbo Wang;Lin Huang
Affiliations:
Wireless Signal Processing and Network Lab, Key laboratory of Universal Wireless Communication, Ministry of Education, Beijing University of Posts & Telecommunications, Beijing, China 100088;Wireless Signal Processing and Network Lab, Key laboratory of Universal Wireless Communication, Ministry of Education, Beijing University of Posts & Telecommunications, Beijing, China 100088;Wireless Signal Processing and Network Lab, Key laboratory of Universal Wireless Communication, Ministry of Education, Beijing University of Posts & Telecommunications, Beijing, China 100088;Orange, France Telecom, R&D, Beijing, China
Venue:
Wireless Personal Communications: An International Journal
Year:
2010

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Abstract

Hybrid automatic repeat request (HARQ) is the well-known technique to improve the system throughput and link performance in wireless communication systems. It can also be applied together with the cooperative communication, which provides a new way of exploiting the spatial diversity. Firstly, we present the analytical framework of decode-and-forward (DF) relaying systems with the general hop-by-hop HARQ mechanism in this paper. Then, instead of capacity or outage performance which is only taken as the theoretical guide, the block error rate bound of cooperative DF relaying systems with HARQ transmission is analyzed by using weight enumerating functions. Numerical and simulation results demonstrate the effectiveness of the proposed analytical method and show the gain of HARQ transmission in DF relaying systems.