A modem combining fast frequency hopping and direct sequence spread spectrum for radio LAN

This paper proposes a new spread spectrum modem configuration for a radio local area computer network to be implemented by combining fast frequency hopping (FFH) and direct sequence spread spectrum. To confirm the performance of the proposed modem, the average bit error probability under the multi-user Rayleigh fading channels is theoretically analyzed. Numerical results using a practical indoor microcellular channel parameter show that the proposed modem reduces the error floor without increasing the complexity of the modem.<
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