Description

The amplify-and-forward relay protocol is a protocol defined for wireless cooperative communications. An example of a wireless communication network in which cooperation improves the performance of the system is the relay network. Cooperation happens when a direct communication between a source (S) and a destination (D) is improved due to the help provided by a neighboring node. This neighboring node is denoted as a relay (R), when he has no data of its own to transmit, or it can be a node that has data of its own to transmit but it can also help with the communication between S and D.

          The  processing  speed  of  a  server  increases  its power  consumption  but  reduces  the  processing  time, and  consequently  reduces  the  power consumed  by  the  network.  Finally reduce the total power consumption.  Quality of service is particularly important for the transport of traffic with special requirements. In particular, developers have introduced technology to allow computer networks to become as useful as telephone networks for audio conversations, as well as supporting new applications with even stricter service demands.

          Here relay transmission with PU’s cooperation has been investigated by four schemes. Parallel-transmission-and-parallel-forwarding (PTPF), Parallel-transmission-and-serial-forwarding (PTSF), Serialtransmission-and-parallel-forwarding (STPF) and traditional Serial-transmission-and-serial-forwarding (STSF) schemes are proposed for both users which are allowed to transmit in parallel or serially.

          Here also achieved to minimize the normalized the total power consumption when both user transmit the signal with efficient QoS and individual transmit power constraint for both the PU and CU. This Optimization Problem (OP) based on the relay scheme implemented and analysed the Relay Sharing (RS) probability for four schemes.