Performance Analysis of Index Modulation

Abstract

Multicarrier Transmission is an important technology for wireless and wideband digital communication systems. It becomes quite easy to eavesdrop or disrupt a wireless network with noise and interferences. These difficulties were tackled through encryption and cryptography. The development of 5G and beyond wireless networks can support massive number of devices and elements and does not need encryption keys.4G wireless systems has availed several features in today’s fast world in the field of wireless communications. But the researches still need to seek solutions for increasing interest for high data rates, better QoS, completely optimized mobile systems and lower latency. 5G systems are foreseen to have ten times high energy and spectral efficiency than current 4G systems. 5G will likewise support data rates upto 10Gbps. A standout amongst the most broadly utilized techniques in wireless networks is OFDM (Orthogonal Frequency Division Multiplexing).It divides the wide band frequency selective fading channel into narrow flat sub band channels. It mainly combats the effect of multipath reception. Recently another transmission technique is developed which incorporates Index Modulation with OFDM. Orthogonal Frequency Division Multiplexing with Index Modulation (OFDM-IM), allows on-off mechanism of subcarriers based on the use. In this paper it is studied, observed and analyzed that OFDM-IM outperforms traditional OFDM for small value of m. The influence of different modulation types on the performance of OFDM-IM is also contemplated.

Keywords: Modulation, Orthogonal Frequency Division Multiplexing, M-ary Modulation, Cyclic Prefix

JEL Classification: Y60