Performance of data-link error control schemes for reliable packet transmission in DS-CDMA systems

We discuss data-link error control for reliable packet transmission in direct sequence code division multiple access (DS-CDMA) wireless communications systems. We analyze (transport control protocol) segment loss rate in a DS-CDMA system which employs selective repeat automatic repeat request (SR-ARQ) as the error control scheme with multicell environments. Our computer simulation results show that, in multicell environments, the improving effect of SR-ARQ on segment loss rate is small because of the burst frame error which is caused by intercell interference. Furthermore, we propose a method to overcome the burst frame error, and show that the method can significantly reduce segment loss rate.