Title :
Enhanced radio bearers for real-time video communications over GERAN
Author :
Fabri, S.N. ; Sweeney, P. ; Kondoz, A.M.
Abstract :
The Enhanced General Packet Radio Service (EGPRS) provides for high rate data transmission over TDMA radio access networks by means of a GMSK/8-PSK modulation scheme. This paper shows that the standard forward error correction codes provided do not offer enough protection for real-time video communications services. A new forward error correction scheme which employs recursive decoding of Reed-Solomon and convolutional codes is introduced. The proposed bearers are designed to be backwards-compatible with the standard EGPRS forward error correction scheme as they employ the same inner codes, yet are shown to provide significant improvements in performance when used to transmit compressed video.
Keywords :
3G mobile communication; Reed-Solomon codes; cellular radio; convolutional codes; data communication; data compression; decoding; forward error correction; minimum shift keying; packet radio networks; phase shift keying; radio access networks; time division multiple access; video coding; visual communication; Enhanced General Packet Radio Service; GERAN; GMSK/8-PSK modulation; Reed-Solomon codes; TDMA; backwards compatibility; compressed video transmission; convolutional codes; enhanced radio bearers; forward error correction; high rate data transmission; inner codes; performance; radio access networks; real-time video communications; recursive decoding;
Conference_Titel :
3G Mobile Communication Technologies, 2003. 3G 2003. 4th International Conference on (Conf. Publ. No. 494)
Print_ISBN :
0-85296-756-X
DOI :
10.1049/cp:20030400
