In this paper we propose packet aggregation scheme in PRMA to improve throughput for data traffic.
According to the proposed scheme, we develop a generic Markov chain model for it.
Based on this model the throughput and delay performance are derived and analyzed.
A numerical example illustrates the efficiency of packet aggregation for improving the throughput.
Furthermore, we analyze the effect of packet aggregation on throughput and delay with varying packet arrival rate.
The results of the paper are valuable inputs for designing optimal packet aggregation algorithm, considering the tradeoff of throughput and delay.
For system with voice and data joint traffic, the proposed scheme can be extended and give higher priority for voice traffic to preempt access the channel.