4ZHANG S, YANG L I,, ZHANG Y. Dynamic FFH/ MFSK for multipleaccess in cognitive radios[C]. Pro- ceedings of ISWCS, 2010: 1051-1055.
5ZHANG S, YANG L L. Fast frequency- hopping dy- namic multiple access for cognitive radios: subopti- mum noncoherent ML multiuser detection[C]. Pro- ceedings of ISWCS, 2010: 238-243.