It's a challenging task to design a high performance modulation for satellite and space communications due to the limited power and bandwidth resource. Constant envelope modulation is an attractive scheme to be used in such cases for their needlessness of input power back-off about 2∼3 dB for avoidance of nonlinear distortion induced by high power amplifier. The envelope of Feher quadrature phase shift keying (FQPSK) has a least fluctuation of 0.18 dB (quasi constant envelope) and can be further improved. This paper improves FQPSK by defining a set of new waveform functions, which changes FQPSK to be a strictly constant envelope modulation. The performance of the FQPSK adopting new waveform is justified by analysis and simulation. The study results show that the novel FQPSK is immune to the impact of HPA and outperforms conventional FQPSK on bit error rate (BER) performance. The BER performance of this novel modulation is better than that of FQPSK by more than 0.5 dB at least and 2 dB at most.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

PROJECT TITLE :Cost-Optimal Caching for D2D Networks With User Mobility: Modeling, Analysis, and Computational Approaches - 2018ABSTRACT:Caching well-liked files at the user equipments (UEs) provides an efficient way to alleviate
PROJECT TITLE :Design, Analysis, and Implementation of ARPKI: An Attack-Resilient Public-Key Infrastructure - 2018ABSTRACT:This Transport Layer Security (TLS) Public-Key Infrastructure (PKI) is based on a weakest-link security
PROJECT TITLE :Reconfigurable Constant Multiplication for FPGAs - 2017ABSTRACT:This paper introduces a replacement heuristic to get pipelined run-time reconfigurable constant multipliers for field-programmable gate arrays (FPGAs).
PROJECT TITLE :Optimization of Constant Matrix Multiplication with Low Power and High Throughput - 2017ABSTRACT:Constant matrix multiplication (CMM), i.e., the multiplication of a relentless matrix with a vector, may be a common
PROJECT TITLE :Generalized DTC Strategy for Multilevel Inverter fed IPMSMs with Constant Inverter Switching Frequency and Reduced Torque Ripples - 2017ABSTRACT:This paper proposes a generalized direct torque control (DTC) strategy

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry