The composite Rayleigh-lognormal distribution is mathematically intractable for the analytical evaluation of such a communication system performance metric as bit error rate. The composite K distribution closely approximates the Rayleigh-lognormal and is potentially useful for analytical manipulations. In this contribution we derive the bit error rates of differential phase-shift keying (DPSK) and minimum shift keying (MSK), in manageable closed forms, for the K distribution model of multipath fading and shadow fading, and show, numerically, the close agreement between these results and those based on the Rayleigh-lognormal distribution.
Bibliographical noteFunding Information:
Manuscript received April 26, 1999. The associate editor coordinating the review of this letter and approving it for publication was Dr. G. J. M. Janssen. This work was supported in part by the National Science Foundation under the Wireless Initiative Program, Grant 9979443.
- Bit error rate
- Differential phase-shift keying
- Fading channels
- K distribution
- Minimum shift keying
- Multipath fading
- Rayleigh-lognormal fading
- Shadow fading