DocumentCode :
2315698
Title :
Blocking effects of mobility and reservations in wireless networks
Author :
Vargas, C. ; Hegde, M.V. ; Naraghi-Pour, M.
Author_Institution :
Center de Electr. y Telecom, ITESM, Monterrey, Mexico
Volume :
3
fYear :
1998
fDate :
7-11 Jun 1998
Firstpage :
1612
Abstract :
We evaluate the effects of mobility and reservations on new call blocking and handoff blocking in multirate wireless networks. The model evaluated uses fixed channel assignment (FCA) with priority for handoffs over new call arrivals by reserving a number of channels for handoff calls in all the cells. The performance measures used are new call blocking and handoff drop probabilities. The methodology used is that of implied costs which we calculate from the the network net revenue which considers the revenue generated by accepting a new call into the network as well as the cost of a handoff drop in any cell. Simulation and numerical results are presented showing the accuracy of the model. We present numerical results showing the effect of reservations on the call blocking probability. The implied cost analysis shows that mobility has a significant knock-on effect on the traffic elsewhere in the network and we capture this effect through the net revenue which is sensitive to the level of mobility. We calculate the sum revenue for a given network by maximizing the net revenue using implied costs in a gradient descent algorithm. This analysis indicates that in the case of multiple classes of traffic the call carrying capacity of the network is sensitive to the choice of reservation parameters
Keywords :
cellular radio; costing; frequency allocation; land mobile radio; probability; radio networks; telecommunication traffic; FCA; blocking effects; call carrying capacity; cellular radio; fixed channel assignment; gradient descent algorithm; handoff blocking; handoff calls; handoff drop probability; handoff priority; implied cost analysis; implied costs; mobility; model accuracy; multirate wireless networks; net revenue; new call arrivals; new call blocking probability; performance measures; reservations; simulation results; sum revenue; traffic; Channel allocation; Computer networks; Costs; Intelligent networks; Land mobile radio cellular systems; Numerical simulation; Performance analysis; Telecommunication traffic; Traffic control; Wireless networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-4788-9
Type :
conf
DOI :
10.1109/ICC.1998.683101
Filename :
683101
Link To Document :
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