Patent ID: 8391228

Claim:
A communication device, comprising: a transceiver with a physical (PHY) layer, wherein the PHY layer is configured for body area network (BAN) operations in a limited multipath environment based on a constant symbol rate for BAN packet transmissions and based on M-ary PSK (Phase-Shift Keying), differential M-ary PSK or rotated differential M-ary PSK modulation, and wherein the PHY layer is configured to construct a physical-layer service data unit (PSDU) based on a concatenate block, an insert shortened bits block, a Bose, Ray-Chaudhuri, Hocquenghem (BCH) encoder, a remove shortened bits block, an add pad bits block, a spreader, a bit interleaver, a scrambler positioned after the bit interleaver and before a symbol mapper, wherein the scrambler operates as a side-stream scrambler with polynomial G(x)=1+x 2 +x 12 +x 13 +x 14 , and wherein the scrambler runs at symbol-rate times the number of bits per symbol.