Abstract :
The performance of a Reed-Solomon (RS) coded differential 16 star-QAM modulation scheme with a decision-directed estimation (DDE) technique as the channel-fading parameter in a frequency hopping (FH) system is simulated. The optimum erasure threshold for an RS decoder is obtained. It is shown that with the optimum erasure threshold a bit-error probability of 10-5 can be achieved at En/N0=21.2 dB for using RS(63,31) and Eb/N0=21.5 dB for RS(31,15).
Keywords :
Reed-Solomon codes; amplitude modulation; decoding; digital radio systems; error statistics; fading; frequency agility; probability; 16 star-QAM modulation; BER; RS coded differential QAM; RS decoder; Reed-Solomon coded; bit-error probability; channel-fading parameter; decision-directed estimation; frequency hopping; optimum erasure threshold;
