A study on the packet detection scheme using successive interference cancellation on CDMA Unslotted ALOHA system

摘要

In wirless packet communication systems, it is will known that the system performance (throughput) depends on the errors of packet detection. Moreover, in a CDMA Unslotted ALOHA system, Multiple Access Interference (MAI) has much influence on the performance of packet detection, and the system performance. Our aim is to improve the system performance. To achieve it, we study the new packet detection scheme to reduce the effect of MAI on packet detection in this paper. In the proposed scheme, the effect is reduced by Successive Interference Cancellation (SIC) and the received signal with less MAI is left. The packet's signal with less MAI. This scheme gives good performance of the packet detection and throughput.