Title :
Two-channel direct-bit detection receiver for 16-psk modulated signals
Author_Institution :
Naval Postgraduate School, Department of Electrical and Computer Engineering, Monterey, USA
fDate :
10/1/1988 12:00:00 AM
Abstract :
A simple two-channel receiver for 16-PSK modulated signals is proposed and its performance evaluated. Assuming an additive white Gaussian noise interference model, the receiver is shown to be optimum in a minimum biterror- rate (BER) sense. Using Gray-code mapping and direct detection of individual bits, the overall receiver performance is evaluated as a function of Eb/N0 and variable phase parameters ¿¿ and ¿¿. These variable phase parameters can be adjusted according to the intended application. A set of values for ¿¿ and ¿¿ that is independent of Eb/N0 exists for the minimisation of the overall BER. However, in applications where individual data streams are interleaved to produce a (higher rate) composite data stream, the value of ¿¿ and ¿¿ that is required to equalise the error rates in the delivered individual data streams, is a function of Eb/N0. Although this represents a slight system disadvantage, it is partly offset by the simplicity with which the receiver is able to deliver deinterleaved data to the intended users.
Keywords :
interference (signal); phase shift keying; radio receivers; signal detection; white noise; 16-PSK modulated signals; BER; Gray-code mapping; additive noise; bit-error-rate; data streams; deinterleaved data; minimisation; performance; two-channel direct-bit detection receiver; variable phase parameters; white Gaussian noise interference model;
Journal_Title :
Communications, Radar and Signal Processing, IEE Proceedings F
DOI :
10.1049/ip-f-1.1988.0054