TY - GEN
T1 - A new multi-channel MAC protocol based on multi-step channel reservation
AU - Yang, Bo
AU - Li, Bo
AU - Qu, Qiao
AU - Yan, Zhongjiang
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/12/15
Y1 - 2014/12/15
N2 - As the wireless networks become more and more popular currently, how to guarantee the Quality of Service (QoS) for high bandwidth traffic is a prime concern. Compared with most existing Medium Access Control (MAC) protocols using only a single wireless channel as the transmission medium, multi-channel MAC protocols have attracted intensive attention recently because of their capabilities of significantly improving the throughput of wireless networks. One of the most representative multi-channel MAC protocols, called Dynamic Channel Assignment (DCA), tends to specifically assigning one channel as the control channel and the others as data channels. However, dedicating one control channel for all mobile nodes in the network to contending for the opportunities to transmit each data packet results in a large handshake cost on the control channel. In which case, the control channel saturates so rapidly that becomes a bottleneck to lead to poor utilization of the available bandwidth and restrict the network performance. This paper proposes a Multi-step Channel Reservation based Multi-channel MAC (MCR-MMAC) protocol, in which multi-step channel reservation mechanism is used to tackle the above mentioned bottleneck problem. Through scheduled transmissions of packets on data channels, the traffic load on the control channel is decreased dramatically. Hence, significant performance gains can be achieved. Extensive experiments using the ns-2 simulator show that the maximum throughput of MCR-MMAC is nearly up to ten times of that of DCA when seven-step channel reservation is adopted.
AB - As the wireless networks become more and more popular currently, how to guarantee the Quality of Service (QoS) for high bandwidth traffic is a prime concern. Compared with most existing Medium Access Control (MAC) protocols using only a single wireless channel as the transmission medium, multi-channel MAC protocols have attracted intensive attention recently because of their capabilities of significantly improving the throughput of wireless networks. One of the most representative multi-channel MAC protocols, called Dynamic Channel Assignment (DCA), tends to specifically assigning one channel as the control channel and the others as data channels. However, dedicating one control channel for all mobile nodes in the network to contending for the opportunities to transmit each data packet results in a large handshake cost on the control channel. In which case, the control channel saturates so rapidly that becomes a bottleneck to lead to poor utilization of the available bandwidth and restrict the network performance. This paper proposes a Multi-step Channel Reservation based Multi-channel MAC (MCR-MMAC) protocol, in which multi-step channel reservation mechanism is used to tackle the above mentioned bottleneck problem. Through scheduled transmissions of packets on data channels, the traffic load on the control channel is decreased dramatically. Hence, significant performance gains can be achieved. Extensive experiments using the ns-2 simulator show that the maximum throughput of MCR-MMAC is nearly up to ten times of that of DCA when seven-step channel reservation is adopted.
KW - Channel Reservation
KW - MAC
KW - Multi-channel
UR - https://www.scopus.com/pages/publications/84922624845
U2 - 10.1109/ICSPCC.2014.6986264
DO - 10.1109/ICSPCC.2014.6986264
M3 - 会议稿件
AN - SCOPUS:84922624845
T3 - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
SP - 603
EP - 607
BT - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2014
Y2 - 5 August 2014 through 8 August 2014
ER -