Research and simulation of HARQ protocol in TEDS wireless communication system

To conform the requirement of high speed data transmission in TETRA enhanced data service (TEDS) wireless communication network, we design and simulate two kinds of Hybrid Automatic Repeat request (HARQ) in TEDS. First we design and simulate traditional HARQ, then we design and simulate chase combining HARQ. We also analyze the results of the simulation, to deduce if adding HARQ mechanism in TEDS can improve the performance of TEDS wireless communication network and if it is valuable to add HARQ mechanism in TEDS wireless communication protocol.