Dynamic random access slots configuration algorithm for interactive broadcasting system

Random access algorithm is critical for the performance of interactive broadcasting system. Random access with Dynamic Window Size and Random Access Slots(D-WS-RAS) is proposed as an efficient way to tackle this problem in the interactive broadcasting system. This algorithm is composed of three parts: utilize Bayes´ rule to estimate the number of access, dynamically set backoff window size and dynamically adjust the number of random access slots within a frame. And we examine the performance compared with traditional Uniform Backoff (UB) algorithm in terms of retransmission delay, packet-dropping delay and system throughput Results show that D-WS-RAS outperforms UB algorithm and simple algorithm with dynamic window size.