Activity dependent power allocation algorithm for IEEE 802.11 networks

Abstract

IEEE 802.11 has become one of the most used wireless access technologies amongst home users and Wireless Internet Service Providers (WISPs). Thanks to flexible use and easy deployment the amount of equipment grew exponentially. However, the growing number of wireless devices both at user premises and in WISPs infrastructure leads to increased interference, which reduces the total effective capacity of overused wireless medium. Several new features were adapted in recently released IEEE 802.11ac to address that trend. Nevertheless, 802.11ac still possess the same medium access control mechanisms as used in the first 802.11-generation protocol. This paper proposes an activity dependent power allocation algorithm for IEEE 802.11 networks, which would allow increasing throughput of IEEE 802.11 networks and their radio spectrum use efficiency. The proposed concept utilizes a modified Point Coordination Function mechanism with added power control functionality based on game-theoretic foundations. With the proposed algorithm the Point Coordinator will be able to provide better control of different channel utilization levels and manage power levels of terminal stations in real-time.