PERFORMANCE ENHANCEMENT OF WIRELESS NETWORKS USING COOPERATIVE DIVERSITY TECHNIQUES

Channel weakening is one among the significant issues in wireless communication which can be overcome by the exploiting diversity gain, achieved via cooperation between nodes and relays. In order to improve the gain, generally, we require more than one transmitting antenna in a node, which is not too common due to the limits in size and complexity of wireless mobile devices. Anyway by offering reception apparatuses to other single-receiving wire hubs in a multi-client condition i.e., agreeable decent variety, a virtual multi-radio wire cluster is framed and transmit-assorted variety is cultivated. In our proposed work, a network containing a sender, a destination and a fixed relay, is analyzed with  modified  cooperative diversity scheme  such as Amplify-Quantize and Forward (AFQ) and compared with existing cooperative communication  protocol i.e.,  Amplify and forward (AF). Moreover the performance of the proposed work is evaluated in terms of Bit-Error Rate, SNR and Outage Probabilit