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A. Ahmad 1 and N. Javaid 1, 2 and U. Qasim 3 and M. Ishfaq 4 and Z. A. Khan 5 and T. A. Alghamdi 6
Academic Editor:Hassan Mahmood
1, EE Department, COMSATS Institute of Information Technology, Islamabad 44000, Pakistan
2, CAST, COMSATS Institute of Information Technology, Islamabad 44000, Pakistan
3, University of Alberta, AB, T6G 2J8, Canada
4, King Abdulaziz University, Rabigh 21911, Saudi Arabia
5, Internetworking Program, FE, Dalhousie University, Halifax, NS, B3J 4R2, Canada
6, CS Department, College of CIS, Umm AlQura University, Makkah 21955, Saudi Arabia
Received 19 December 2013; Accepted 8 February 2014; 27 April 2014
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
1. Introduction
WBASN is a particular type of Wireless Sensor Network (WSN), normally concerned with human body. A small set of wireless sensors (nodes) are used to gather real time data and forward it to sink directly or indirectly through relay nodes. Each node is provided with radio transceiver, processor, and battery source [1]. Sink is supplied with extensive battery power; however, nodes are shared with limited resources. Most commonly used application of WBASNs is the modern health care system which enables patient to be monitored, diagnosed, and prescribed remotely. In health care domain, WBASNs are used to monitor patients suffering from diabetes, temperature, blood pressure, heart attack, and many more.
Route selection between any two nodes starts with the selection of neighbours based on some sort of information which is shared among the adjacent neighbours and then all around the network. This whole scenario depends on the capability of nodes and major objectives associated with these are battery lifetime extension along with recharging as seldom as possible. Routing protocols are prominently involved in sustaining the lifetime of nodes. A specific route with minimum energy cost needs to be selected for data transmission; in subject to this many routing protocols are proposed and many more needs to be proposed.
In this paper, we present a new routing protocol for WBASNs; RE-ATTEMPT. The protocol operation of the proposed protocol is completed in four phases. Firstly, nodes broadcast HELLO messages...