TY - GEN
T1 - An efficient cooperative MAC protocol for enhancing QoS of IEEE 802.11e EDCA in saturated conditions
AU - Roy, Jaya
AU - Siddik, Abubakar
AU - Moni, Shafika Showkat
AU - Alam, Mohammad Shah
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/2/13
Y1 - 2017/2/13
N2 - Differentiating channel access probability based on only traffic priority can ensure QoS statistically in enhanced distributed channel access (EDCA) of IEEE 802.11e. However, it may seriously affect the overall performance in presence of degraded channel condition among distant stations. In this paper, we propose a novel channel access scheme which exploits the benefit of cooperative communication in order to mitigate the adverse effect of bad channel condition while maintaining deterministically prioritized channel access for high priority traffic. Unlike EDCA, in our proposed scheme whenever a station with degraded channel condition wins the channel contention, our scheme searches for a prospective helper node to assist the sender in transmission. Eventually by exchanging sequence of busy tones and a special frame, it selects an optimal helper which has data with equal or higher priority as well as supports significantly higher data rate for cooperative transmission. Simulation results demonstrate that our proposed protocol enhances the QoS of the network while improving the overall performance of EDCA.
AB - Differentiating channel access probability based on only traffic priority can ensure QoS statistically in enhanced distributed channel access (EDCA) of IEEE 802.11e. However, it may seriously affect the overall performance in presence of degraded channel condition among distant stations. In this paper, we propose a novel channel access scheme which exploits the benefit of cooperative communication in order to mitigate the adverse effect of bad channel condition while maintaining deterministically prioritized channel access for high priority traffic. Unlike EDCA, in our proposed scheme whenever a station with degraded channel condition wins the channel contention, our scheme searches for a prospective helper node to assist the sender in transmission. Eventually by exchanging sequence of busy tones and a special frame, it selects an optimal helper which has data with equal or higher priority as well as supports significantly higher data rate for cooperative transmission. Simulation results demonstrate that our proposed protocol enhances the QoS of the network while improving the overall performance of EDCA.
KW - Cooperative communication
KW - EDCA
KW - IEEE802.11e
KW - Quality of service
UR - http://www.scopus.com/inward/record.url?scp=85016222282&partnerID=8YFLogxK
U2 - 10.1109/ICECE.2016.7853986
DO - 10.1109/ICECE.2016.7853986
M3 - Conference contribution
AN - SCOPUS:85016222282
T3 - Proceedings of 9th International Conference on Electrical and Computer Engineering, ICECE 2016
SP - 578
EP - 581
BT - Proceedings of 9th International Conference on Electrical and Computer Engineering, ICECE 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 9th International Conference on Electrical and Computer Engineering, ICECE 2016
Y2 - 20 December 2016 through 22 December 2016
ER -