IDMA Network Connectivity with Coordinated Relaying Beamforming

Ms. Minakshi Kaushik

doi:https://doi.org/10.51976/jfsa.412102

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IDMA Network Connectivity with Coordinated Relaying Beamforming

Minakshi Kaushik

Vol 4 , Issue 1 , January - June 2021 | Pages: 7-12

https://doi.org/10.51976/jfsa.412102

Author Details ( * ) denotes Corresponding author

1. * Minakshi Kaushik, Researcher, Tallinn University of Technology, Estonia (minakshi.kaushik@taltech.ee)

This study proposes a new method of achieving geographic variety using cooperative relays in conjunction with IDMA to produce dispersed beams. Throughput in wireless networks is something that can perhaps be improved with this combo. The suggested concept requires a two-pronged approach to communication. Initially, users would communicate their information to relaying, that will amplify the data and deliver it to the desired place. IDMA is a well-known NOMA technique that may reduce the effects of MAI at both relay and end nodes. This interference might happen at any of these two nodes. To maintain the final destination’s QoS, the signal was processed carefully at each relay. This research tries to find the optimal beam formation weights by minimizing transmit power while keeping quality (as assessed by signal-to-noise ratio) high (SINR). However, the power minimization problem is not a convex one, thus semi-definite relaxation is used to transform it into a semi-definite programming (SDP) challenge, which may then be solved using the standard SDP problem solver CVX. The mathematical analysis and simulation experiment of the proposed technique show that performance may be enhanced as determined by the bit error rate.

Keywords

Coordinated Relay Beamforming; IDMA; QOS; Semidefinite Programming

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