Title :
A TDMA-based MAC protocol with cooperative diversity
Author :
Yang, Zhuo ; Yao, Yu-Dong ; Li, Xiaochen ; Zheng, Di
Author_Institution :
Dept. of Electr. & Comput. Eng., Stevens Inst. of Technol., Hoboken, NJ, USA
fDate :
6/1/2010 12:00:00 AM
Abstract :
Cooperative diversity is an effective technique for transmission performance improvement over fading channels. In this paper, through the use of a virtual antenna array, a time division multiple access (TDMA) based cooperative media access control (MAC) protocol, Cooperative TDMA (C-TDMA), is proposed to enable cooperative transmissions in Rayleigh fading channels to improve the probability of correct packet reception and system throughput. A C-TDMA throughput expression is derived using a Markov chain model. Numerical results show that the throughput of conventional TDMA can be improved by over 40% through the use of the cooperative MAC designs.
Keywords :
Markov processes; Rayleigh channels; access protocols; diversity reception; time division multiple access; C-TDMA throughput expression; Markov chain model; Rayleigh fading channels; TDMA-based MAC protocol; cooperative diversity; cooperative transmissions; fading channels; time division multiple access; transmission performance improvement; virtual antenna array; Access protocols; Antenna arrays; Base stations; Fading; Media Access Protocol; Quality of service; Scheduling; Throughput; Time division multiple access; Transmitting antennas; Cooperative diversity, media access protocol; throughput, TDMA;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.06.092451
