Open AccessPerformance Enhancement in MIMO-OFDMA System
Author(s) -
B. Archana,
T P Surekha
Publication year - 2019
Publication title -
international journal of innovative technology and exploring engineering
Language(s) - English
Resource type - Journals
ISSN - 2278-3075
DOI - 10.35940/ijitee.a5269.129219
Subject(s) - computer science , mimo , transmitter , bit error rate , orthogonal frequency division multiplexing , electronic engineering , mimo ofdm , multi user mimo , wireless , viterbi decoder , transmission (telecommunications) , diversity gain , decoding methods , channel (broadcasting) , computer network , telecommunications , engineering
The systematic advancement in wireless communication has provided many significant aspects towards communication domain. However, obtaining the high-speed data transmission is still a biggest concern in various multimedia-based applications. Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing Access (MIMO-OFDMA) based communication is widespread towards research area. In addition, the combination of MIMO-OFDMA with the steering antenna can lead to improved communication efficiency and offer diversity gain without changing radio frequency (RF). This paper introduces systems for power allocation and resource allocation by A) low complex compressive channel approximation (CSCE) and b) combined parallel cancelation and Viterbi encoding / decoding (PCVed). The outcome of compressive sensing based system brings reduced Bit Error Rate (BER) and less computational complexity while the performance analysis PCVed with different approaches for 4x4 transmitter and receiver.