Hanzo, L, Cheung, J C S, Steele, R and Webb, W T
Performance of PRMA Schemes via Fading Channels.
In, VTC'93, Secaucus, NJ. , USA,
18 - 20 May 1993.
This is the latest version of this item.
A packet reservation multiple access (PRMA) assisted microcellular cordless telecommunications (CT) system is investigated for office type environments. The objective speech quality is found as a function of channel signal to noise ratio (SNR) for transmission over narrowband Rayleigh fading channels, parameterised with the number of PRMA users. A moderate complexity 16-ary CT scheme consitituted by a 4 bit/symbol 32kbps adaptive differential pulse code modulation (ADPCM) speech codec, Reed-Solomon forward error correction (FEC) codec and diversity-assisted 16-level star quadrature amplitude modulation (16-StQAM) modem is proposed. The 264kBd 20-slot PRMA scheme supports 36 users while maintaining virtually imperceptible speech degradation for channel SNRs in excess of about 25dB and for mobile speeds above 2mph.
Available Versions of this Item
Performance of PRMA Schemes via Fading Channels. (deposited 11 Dec 2002)
Actions (login required)