Centralized Backoff Control Scheme in Slotted CDMA Systems

In-Taek Lim
2011 Journal of information and communication convergence engineering  
This paper proposes a centralized backoff control scheme for guaranteeing fair packet transmissions in S-ALOHA CDMA system. In S-ALOHA CDMA system, simultaneously transmitted packets act as multiple access interferences, so that unsuccessful packet transmissions are caused entirely by multiple access interferences. Therefore, in order to maximize the system performance, the levels of MAI should be kept at an optimal level. In the proposed scheme, the base station broadcasts the packet
more » ... on probability, which is calculated based on the level of MAI. Mobile stations attempt to transmit their packet with the received probability. Simulation results show that the proposed scheme can guarantee a good fairness among all the mobile stations.
doi:10.6109/jicce.2011.9.1.038 fatcat:7xhtjw7ibbdctfb3vqpdwwz5gu