A channel bonding MAC protocol for IEEE 802.11ac WLANs

IEEE 802.11 DCF, which is the most famous MAC protocol, can not fully exploit the efficiency of channel bonding mechanism. The transmission in wider bandwidth not only leads to a higher carrier-sensing threshold but also causes the less signal power in each channel. Hence, Outside Warning Range Problem (OWRP) is conducted in the paper for IEEE 802.11ac WLANs. The paper analyzes the relationships among the transmission range, carrier-sensing range, and interference range in case that channel bonding mechanism is adopted and proposes a MAC protocol for IEEE 802.11ac WLANs to avoid collisions. Simulation results show that the proposed MAC protocol can increase network throughput.

[1]  Michelle X. Gong,et al.  Channel Bounding and MAC Protection Mechanisms for 802.11ac , 2011, 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011.

[2]  Saewoong Bahk,et al.  A Channel Allocation Algorithm for Reducing the Channel Sensing/Reserving Asymmetry in 802.11ac Networks , 2015, IEEE Transactions on Mobile Computing.

[3]  Minyoung Park,et al.  IEEE 802.11ac: Dynamic Bandwidth Channel Access , 2011, 2011 IEEE International Conference on Communications (ICC).

[4]  Anuj Batra,et al.  On the 20/40 MHz Coexistence of Overlapping BSSs in WLANs , 2008, J. Networks.

[5]  Sunghyun Choi,et al.  Enhancement of wide bandwidth operation in IEEE 802.11ac networks , 2015, 2015 IEEE International Conference on Communications (ICC).

[6]  Kuei-Ping Shih,et al.  CAPC: a collision avoidance power control MAC protocol for wireless ad hoc networks , 2005, IEEE Commun. Lett..