A new TDMA-based cooperative MAC scheme

Author

Xinyu Liu ; Cheng Chen ; An Huang ; Zhou, Qing F.

Author_Institution

Dept. of Commun. Eng., Hefei Univ. of Technol., Hefei, China

fYear

2015

fDate

27-29 April 2015

Firstpage

48

Lastpage

53

Abstract

This paper proposes a new TDMA-based cooperative MAC scheme for a two-hop relay network in which there are several helpers besides a default relay node. Here, a helper has lower obligation than the default relay to help packet forwarding. The proposed method is developed from the existing CR-TDMA scheme, and named as opportunistic CR-TDMA or OCR-TDMA. We derive the throughput performance of CR-TDMA and OCR-TDMA. Both the theoretical analysis and simulation results demonstrate that OCR-TDMA provides superior throughput performance compared with CR-TDMA, even though OCR-TDMA is a limited modification of CR-TDMA. Amazingly, the OCR-TDMA gains remarkable cooperation benefit even when the helpers have low resource and capability to cooperate.

Keywords

access protocols; cooperative communication; relay networks (telecommunication); time division multiple access; OCR-TDMA; TDMA-based cooperative MAC scheme; default relay node; opportunistic CR-TDMA; time division multiple access; two-hop relay network; Probability; Relay networks (telecommunications); Signal to noise ratio; Telecommunications; Throughput; Time division multiple access; Cooperative MAC; TDMA; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications (ICT), 2015 22nd International Conference on

Conference_Location

Sydney, NSW

Type

conf

DOI

10.1109/ICT.2015.7124656

Filename

7124656