An adaptive algorithm of generating and flexible transmitting the RS amble sequence in WiMAX relay networks

Based on the RS amble sequence of IEEE802.16e Standard, a simple and effectively adaptive algorithm of generating and flexible transmitting the RS amble sequence is provided. The new RS amble sequence has properties very similar to the frame start preamble to minimize the impact on the existing standard and also enable reuse of existing technology defined for SS/MS receiver at the RS receiver. The transmitting algorithm proposes an adaptive transmitting mechanism with the abilities of synchronization, channel estimation, carrier frequency estimation. The result of simulation and test shows that the algorithm is very effective.