Cost/revenue optimisation in multi-service mobile broadband systems

Multi-service traffic has a strong impact in mobile broadband systems (MBS) revenues, allowing one to obtain merit functions for optimisation purposes. A ´net cost´ model is presented for the design trade-offs between re-use pattern, K, the coverage distance, R, and the spectral efficiency, S_ef(R). It allows for the determination of the revenue per basic channel, R₃₈₄, that achieves a given value for the annual profit per kilometre. Comparing the urban with the roads scenarios for R=100 in and K=2, whereas (S_ef)_TOT=32.2 and 15.2%, R₃₈₄ has to be 0.005 and 0.045 #/min, respectively, i.e., the prices in the roads scenario (with higher terminal mobility) have to be around one order of magnitude higher than in the urban one.