Title :
Performance model of RLP for packet data services in UMTS systems
Author :
Wu, Yi ; Niu, Zhisheng ; Zheng, Junli
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
In This work we propose a new analytical model of the NAK-based selective repeat (SR) ARQ scheme for packet data services in UMTS systems. We analyze the RLP performance over a pair of Markov channels considering the imperfect feedback and arrive to an adequate formulae for residual FER, data throughput, and expected delay as a function of physical layer FER and normalized Doppler bandwidth. Numerical results show that due to the NAK based mechanism, the initial state distribution of the forward channel makes the channel correlation throughput performance beneficial.
Keywords :
3G mobile communication; Markov processes; automatic repeat request; error statistics; feedback; protocols; radio links; telecommunication channels; telecommunication services; Markov channels; NAK-based selective repeat ARQ scheme; RLP; UMTS systems; frame error rate; imperfect feedback; normalized Doppler bandwidth; packet data services; radio link protocol; 3G mobile communication; Analytical models; Automatic repeat request; Bandwidth; Delay; Feedback; Performance analysis; Physical layer; Strontium; Throughput;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on
Print_ISBN :
0-7803-8523-3
DOI :
10.1109/PIMRC.2004.1368769
