Title :
Asynchronous cooperative transmission in Underwater Acoustic Networks
Author :
Wang, Ping ; Feng, Wei ; Zhang, Lin ; Li, Victor O K
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
Multi-path fading, one of the key factors that deteriorate quality of service (QOS) in Underwater Acoustic Networks (UANs), is investigated under different underwater scenarios in this paper. To improve the Bit Error Rate (BER) performance, the techniques of cooperative diversities are applied. Considering realistic physical model and cooperative diversity techniques, two asynchronous forwarding schemes, namely Underwater Amplify-and-Forward (UAF) and Underwater Decode-and-Forward (UDF), are proposed and analyzed. The results show that both UDF and UAF have better performance than direct transmission. Furthermore, an adaptive and hybrid forwarding scheme is proposed based on UAF and UDF.
Keywords :
amplify and forward communication; decode and forward communication; error statistics; quality of service; underwater acoustic communication; adaptive forwarding scheme; asynchronous cooperative transmission; asynchronous forwarding scheme; bit error rate performance; cooperative diversity technique; hybrid forwarding scheme; multipath fading; physical model; quality of service; underwater acoustic network; underwater amplify-and-forward; underwater decode-and-forward; Bit error rate; Computational modeling; Fading; Propagation delay; Relays; Signal to noise ratio; Underwater acoustics; Amplify-and-Forward; Decode-and-Forward; Hybrid Forwarding Scheme; Underwater Acoustic Networks;
Conference_Titel :
Underwater Technology (UT), 2011 IEEE Symposium on and 2011 Workshop on Scientific Use of Submarine Cables and Related Technologies (SSC)
Conference_Location :
Tokyo
Print_ISBN :
978-1-4577-0165-8
DOI :
10.1109/UT.2011.5774167
