Exploiting Routing Redundancy using MAC layer Anycast to Improve Delay in WSN

Ashraf, Farhana; Kravets, Robin; Vaidya, Nitin H.

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https://hdl.handle.net/2142/17412 Copy

Description

Title

Exploiting Routing Redundancy using MAC layer Anycast to Improve Delay in WSN

Author(s)

• Ashraf, Farhana
• Kravets, Robin
• Vaidya, Nitin H.

Issue Date

2010-11-20

Keyword(s)

• Wireless Sensor Networks
• end-to-end delay
• routing

Abstract

Source-destination pairs in wireless sensor networks often have multiple shortest hop paths because the nodes are densely deployed. These multiple paths provide a great opportunity to reduce delay as well as energy in an asynchronous duty-cycled network. In this paper, we exploit the redundancy available at the route layer using MAC-layer anycasting and reduce the delay incurred at each hop as the sender waits for its next hop node to be awake. By applying anycast to existing X-MAC and NPM protocols, we show that anycast can be incorporated into duty-cycled MAC protocols by using small modifications. Our evaluations in ns-2 show that the modified X-MAC and NPM protocols can achieve delay improvements of 30% and 12% respectively by exploiting the route level redundancy using anycast.

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/17412

Sponsor(s)/Grant Number(s)

NSF CNS 05-19817

Owning Collections