Mobility

Comparison of IEEE 802.11 and IEEE 802.15.4 for Future Green Multichannel Multi-Radio Wireless Sensor Networks

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Executive Summary

Multi-channel MAC protocols have recently obtained considerable attention in wireless networking research because they promise to increase capacity of wireless networks significantly by exploiting multiple frequency bands. In this paper, the authors do a comparison between IEEE 802.11 and IEEE 802.15.4 and investigate the performance between both using simulations conducted in NS2. This investigation will allow one to determine the feasibility in having IEEE 802.11 being considered as a future medium for wireless sensor networks operating in a multichannel environment at high data rate with streaming data that would be a challenge for IEEE 802.15.4. More so IEEE 802.15.4 will be facing severe challenge to operate in the 2.4GHz frequency band when the IEEE 802.11n becomes popular, operating within the same frequency band.

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