Patent ID: 8717963

Claim:
A method for implementing a star topology wireless communications network, said method comprising: providing a central access point in wireless communication with a plurality of fixed nodes scattered over a geographical area; determining said access point location; determining each said node location; determining signal propagation time between said access point and each said nodes; implementing said wireless communication by modulating message data into message symbols using M-ary Quadrature Amplitude Modulation (M-QAM), said message symbols further modulated by a Direct Sequence Spread Spectrum (DSSS) Pseudo Random Noise (PN) code sequence; dividing said signal propagation time into equally separated range rings, said range rings starting at said access point and said range ring separation equal to one said DSSS PN code sequence chip period in signal propagation time and signal propagation distance; defining a plurality of time slots in which said wireless communication occurs; synchronizing said network timing, Radio Frequency (RF) transceiver frequency, and said time slots of said access point and said nodes to prevent said wireless communication message collisions; and implementing multiple access during said time slots based on said DSSS PN code sequence and said signal propagation time between said access point and each said nodes.