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Energy Efficiency of MIMO-IFBC for Green Wireless Systems

Author(s):

Divya R , Mount Zion College of Engineering and Technology, Pathanamthitta, Kerala, India

Keywords:

MIMO, SVD, Waterfilling, SNR, DPC, EE, Interfernce alignment

Abstract

To design a reliable wireless system, its energy efficiency is an essential factor. As MIMO system has to suffer from fading, interferences and noises, the system should design in such a way that to compensate these problems. So interference alignment is included with MIMO interfering broadcast channel. This paper deals with the energy efficiency maximization of MIMO-IFBC system. When the energy efficiency is maximized, as it depends on power, the capacity of the system increases and thus the data rate also increases and cancels or minimizes interferences. Here the EE is compared and optimized for two SNR regions, that is, for high SNR and moderate SNR. For high SNR singular value decomposition is used with water filling power adaptation algorithm and EE is optimized. The optimization of EE and power allocation is easy to implement as noise and interference is less. In the case of high SNR the power is high and noise is low so EE can maximize using power allocation algorithms most commonly used is water filling algorithm. For moderate SNR regions, the power is less so by using DPC algorithm the distorted or low power signal at receiver can be boosted so power can increased and thereby EE get maximized. This paper focused mainly on the EE optimization of moderate SNR regions, and thereby a reliable MIMO-IFBC system with interference alignment for medium SNR is proposed.

Other Details

Paper ID: IJSRDV4I30050
Published in: Volume : 4, Issue : 3
Publication Date: 01/06/2016
Page(s): 10-14

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