An Effective Approach Towards Topology Control in Wireless Ad-Hoc Sensor Networks

In recent times, for improving the performance of information transmission operating over the ever-challenging wireless medium, cooperative wireless communication has received tremendous interests as an untapped means. For multiple antenna systems, cooperative communication has emerged as a new dimension of diversity to emulate the strategies designed, due to dimension, expenditure, or hardware margins a wireless mobile device may not be able to support multiple transmit antennas. Most previous works on cooperative communications are paying attention on linklevel physical layer issues. Consequently, on network-level upper layer issues have the impacts of cooperative communications, such as topology organize, routing and network ability, are mainly unnoticed. In this paper, to improve the network capacity in mobile ad hoc networks (MANETs) by jointly considering both upper layer network capacity and physical layer cooperative communications a Capacity-Optimized Cooperative (COCO) topology control scheme is proposed. In order to diminish the cost of dispersed algorithms topology control is a method used in distributed computing to modify the underlying network. It is a fundamental method in dispersed algorithm. The main aim of topology control in this domain is to accumulate energy, diminish interference between nodes and widen lifetime of the network. Through simulations, we have proposed topology control scheme which can substantially improve the network capacity in MANETs with cooperative communications and we show that physical layer cooperative communications have significant impacts on the network capacity.