A power control MAC protocol for ad hoc networks
Proceedings of the 8th annual international conference on Mobile computing and networking
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
An Energy Efficient MAC Protocol for IEEE 802.11 WLANs
CNSR '04 Proceedings of the Second Annual Conference on Communication Networks and Services Research
Numerical analysis of IEEE 802.11 broadcast scheme in multihop wireless ad hoc networks
ICOIN'05 Proceedings of the 2005 international conference on Information Networking: convergence in broadband and mobile networking
Minimum energy and latency MAC protocol for wireless sensor networks
UIC'07 Proceedings of the 4th international conference on Ubiquitous Intelligence and Computing
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In the area of wireless mobile communication, minimizing energy consumption as well as maximizing data throughput in medium access control (MAC) layer is a very important research issue. The Distributed Coordination Function (DCF) of IEEE 802.11 provides the power saving mechanism (PSM) that allows nodes to remain silent in ‘doze mode’ for reducing energy consumption. However, IEEE 802.11 PSM is known to cause unnecessary energy consumption due to the problems of an overhearing, a back-off time delay and possible packet collisions. To overcome these problems, we present a new MAC protocol called ‘Slotted-PSM’ for IEEE 802.11 WLANs. In our proposed scheme, the Beyond-ATIM window is divided into a number of time slots, and any node that participates in communication wakes up in its slot times only and other nodes can enter to doze mode during the slot times. Slotted-PSM can reduce unnecessary energy consumption and idle listening problem in the Beyond-ATIM window.