Multiband Multi-rate Narrowband Software Defined Radio waveform using Continuous Phase Modulation

Abstract

Future Software Defined Radio (SDR) waveforms require increasing throughputs to support a wide variety of applications for military, commercial, and civilian applications. It requires a combination of spectral efficiency and better ber performance. To meet the heterogeneous requirement of future wireless networks, a multi-band multi-rate narrowband waveform for software-defined radio based on Continuous Phase Modulation (CPM) presented in this paper. The proposed waveform has ten modes of operation with the maximum achievable throughput of 176.2 kbps. Due to higher spectral efficiency provided by CPM, we show that the proposed waveform attains higher throughput by shifting towards multiple bandwidths and for the appropriate choice of alphabet size M, pulse length L and modulation index, h. In the end, the BER performance of proposed multiband modes for CPM is analyzed.