Design and performance of IEEE 802.15.4 compliant MMSE receivers

Scott, K.E.L. and Stewart, R.W. (2004) Design and performance of IEEE 802.15.4 compliant MMSE receivers. In: Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004-11-07 - 2004-11-10, Pacific Grove, CA. (http://dx.doi.org/10.1109/ACSSC.2004.1399526)

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Abstract

IEEE 802.15.4 compliant design forms the basis of ZigBee technology. Intended for low-power, short range sensor networks, these devices are likely to operate in offices and factories: environments with strong multipath channel components. This research introduces a novel adaptive MMSE receiver design for the ISM 2.4 GHz band, comprising a bank of adaptive MMSE correlators. Design concentrates on methods for the efficient training of each correlator and on de-multiplexing the data after the correlation process. Results show a BER performance comparison of the MMSE receiver design with a traditional correlation receiver. Although the adaptive receiver adds complexity to the transceiver, the improved performance could aid coexistence with other technologies or allow a longer range of operation.