Cooperative Communications Combination Diversity Techniques And Optimal Power Allocation Expression

Optimum Power Allocation for Cooperative Communications

Power Allocation In Cooperative Relay Channels

This paper concerns power allocation in relay-assisted wireless channels for two-hop transmission. First, the transmitter sends the information to both the relay and receiver parts. Next, in the second hop, the transmitter cooperates with the relay to increase the received signal to noise ratio (SNR), assuming the relay makes use of the Amplify and Forward (AF) strategy. Moreover, it is assumed...

Power-Minimizing Resource Allocation in Multiuser Cooperative Relay Communications

In this paper, we investigate the power-minimizing resource allocation problem in multiuser cooperative relay communication systems. A joint optimization problem involving subcarrier assignment, relay selection and power allocation is formulated. Since the problem cannot be solved directly, we decompose it into three subproblems. According to the equivalent channel gains and the target rates of...

Novel IDM-Cooperative Diversity Scheme and Power Allocation

In this paper, we propose a novel interleave division multiplexing(IDM) cooperative diversity scheme and we look about some properties of the proposed scheme. The proposed scheme is flexible and has low relay complexity. We also propose a power allocation algorithm. Simulation results show that the proposed scheme achieves diversity gain and the performance is further increased with the propose...

Resource Allocation in Cooperative Communications

In this project, we have developed a framework for resource allocation in a multi user cooperative wireless network. We have considered centralized and decentralized node-relay assignment with the objective of maximizing the sum throughput. We present an efficient polynomial time centralized assignment algorithm to achieve this objective, and also investigate efficient decentralized schemes tha...