Title :
Comparing modulation options for the evolution of TDMA technology
Author :
Mostafa, Ayman A. ; Arslan, Huseyin ; Ramésh, R.
Author_Institution :
Ericsson Inc., NC, USA
Abstract :
The proposed evolution of TDMA, as governed by the next revision of IS-136, proposes enhanced voice and data services, which are enabled by using 8-level modulation. The proposed voice service uses the US1 vocoder. The proposed packet data service uses GPRS at higher layers with customized physical and MAC layers. In this paper, the performance of coherent and differential and 8-PSK are compared in light of the slot format and channel coding considered in ANSI-136. The comparison shows that the coherent modulation option is the preferable one. Also, throughput results for the proposed data service are presented
Keywords :
cellular radio; channel coding; data communication; differential phase shift keying; digital radio; packet radio networks; phase shift keying; time division multiple access; voice communication; 8-DPSK; 8-PSK; 8-level modulation; ANSI-136; GPRS; IS-136 cellular system; TDMA technology; US1 vocoder; channel coding; coherent modulation; differential modulation; enhanced data services; enhanced voice services; packet data service; slot format; Channel coding; Data communication; Dual band; Electronic mail; Ground penetrating radar; Physical layer; Throughput; Time division multiple access; Vocoders; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-5565-2
DOI :
10.1109/VETEC.1999.780516
