An Efficient Achieving Optimal Throughput Utility and Low Delay with CSMA-Like Algorithms: A Virtual Multichannel Approach

Abstract

A new CSMA-like algorithm, called Virtual-Multi-Channel CSMA (VMC-CSMA), is an algorithm that can provably achieve high throughput utility and low delay with low complexity. The key idea of VMC-CSMA to avoid the starvation problem is to use multiple virtual channels (which emulate a multichannel system) and compute a good set of feasible schedules simultaneously (without constantly switching / recomputing schedules). However Accuracy is very low in this network. While transmission of data the message may loss. Reliability is also comparatively low in this method. In order to save resources and energy, data must be aggregated. The objective of data aggregation is to eliminate redundant data transmission and to enhance the life time of energy in wireless network.  Efficient clustering schemes are beneficial for data aggregation process. Thus, in this paper we propose new schemes for clustering with respect cluster head selection to attain energy efficiency and to extend the lifetime. To increase the privacy in the network HMAC algorithm is added. And we also process the Clustering concept to increase the efficiency of the network