Propagation aspects of importance to packet data frequency reuse system simulation
P. Fullarton, G.C. Hess · 2002
Procedures for simulating frequency reuse, multiple-access packet data systems are discussed. Due to the random access nature typical of packet data protocols, the characterization of interference is more complex than for voice systems. Specifically, angle of arrival difference (AAD) correlations among lognormal shadowing deviations must account for the possibility of multiple interference sources residing in single cells. For collision resolution, the authors relate block error probability to link quality (taken as average signal-to-interference plus noise power ratio, C/(I+N)) through an offset exponential form and the quasi-static approximation. For one particular QPSK trellis-coded transmission scheme, the block error impact of using C/N, rather than C/I, is shown to be conservative, as is the quasi-static approximation.