PERFORMANCE EVALUATION OF ETHERNET TRANSMISSION USING M-ARY PULSE AMPLITUDE MODULATION TECHNIQUES

Construction and Performance of q-ary Turbo Codes for use with M-ary Modulation Techniques

This paper describes a construction technique for q-ary Turbo Codes that computes good recursive systematic convolutional q-ary constituent codes with constraint length ν ≤ 5 for q = 2, m = 2 and 3. The construction technique, based on the algorithm in [5], determines the codes with maximum di for i = 2, 3, and 4 and minimum codeword multiplicity, where di is the minimum weight of all code sequ...

Performance Analysis of Different M-ary Modulation Techniques in Fading Channels Using Different Diversity

The comparison of symbol error probability(SEP) for different M-ary modulation techniques over slow, flat, identically independently distributed Rician fading channel is presented in this paper. Because fading is one of the major limitations in wireless communication, so modulation technique with diversity is used to transmit message signal efficiently. Exact analysis of symbol error probabilit...

Bit Error Probability Computations for M-ary Quadrature Amplitude Modulation

Performance of Binary Turbo-Coded 256-ary Pulse-Position Modulation

This article compares the performance of binary turbo codes and Reed–Solomon (RS) codes in an optical communications system employing high-order pulseposition modulation (PPM) and an avalanche photodiode (APD) detector. Despite restriction of the turbo codes to binary alphabets and very simple 4or 8-state encoders, they have coding gains 0.5-dB to 0.7-dB higher than equivalent-rate RS codes whe...

Design and Performance Analysis of 7-Level Diode Clamped Multilevel Inverter Using Modified Space Vector Pulse Width Modulation Techniques

In this paper, a 7-level Diode Clamped Multilevel Inverter (DCMLI) is simulated with three different carrier PWM techniques. Here, Carrier based Sinusoidal Pulse Width Modulation (SPWM), Third Harmonic Injected Pulse Width Modulation (THIPWM) and Modified Carrier-Based Space Vector Pulse Width Modulation (SVPWM) are used as modulation strategies. These modulation strategies include Phase Dispos...