Collaborative Beamforming for Wireless Ad-hoc Networks

COLLABORATIVE BEAMFORMING FOR WIRELESS AD-HOC NETWORKS A.H. Karode1, S.R. Suralkar2, Manoj Bagde3 1Dept. of Electronics and Telecommunication, SSBTCOET, Jalgaon, India, [email protected] 2Dept. of Electronics and Telecommunication, SSBTCOET, Jalgaon, India, [email protected] 3 Dept. of Electronics and Telecommunication, SSBTCOET, Jalgaon, India, [email protected] In this paper, we present collaborative/cooperative beam forming for wireless ad-hoc networks. Via collaborative beamforming, nodes in wireless network are able to transmit a common message over a long distance in an energy efficient manner. To improve the performance, we have developed a cooperative beamforming algorithm. The idea of cooperative beamforming is to take the help of neighboring nodes to form a beam of electromagnetic energy i.e. the idea of antenna array is used. Since, in this type of network the nodes cannot have antenna array to implement beamforming, we take the help of nearby node to participate in beamforming process. Source node in the network is allowed to transmit. Collaborating nodes receives the transmitted packets. Subsequently each collaborating node transmits its received signal. One or multiple beams are formed each focusing on one destination node and reinforcing the signal intended for a particular destination as compared to the other signals. The proposed work achieves higher throughput and improved SNR in the ad-hoc network.