A GMSK Receiver with Beamformer Weight Refinement
Wireless Personal Communications: An International Journal
Hi-index | 0.00 |
This paper addresses the design of adaptive beamforming algorithms used to improve the reception of Time Division Multiple Access (TDMA) signals in an environment rich in multipath and cochannel interference. A formulation of the problem is presented with an emphasis on "real-world" issues such as frame synchronization and partial slot overlap due to cochannel interferers. Three beamformer-demodulator structures are examined along with algorithms for adaptively optimizing their performance. Simulation results are provided to show that the beamformer-demodulator structures can significantly improve the Bit Error Rate as a function of SINR compared to a single antenna system. The computational complexity of the various structures is compared and shown to be reasonable for implementation on a set of TMS320C40 Digital Signal Processors.