Link adaptation in mobile WiMAX systems under the ITU-R mix of channels

Authors:
Rebeca Colda;Tudor Palade;Irina Vermešan;Ancuţa Moldovan;Emanuel Puşchiţă
Affiliations:
Communications Department, Technical University of Cluj-Napoca, Cluj-Napoca, Romania;Communications Department, Technical University of Cluj-Napoca, Cluj-Napoca, Romania;Communications Department, Technical University of Cluj-Napoca, Cluj-Napoca, Romania;Communications Department, Technical University of Cluj-Napoca, Cluj-Napoca, Romania;Communications Department, Technical University of Cluj-Napoca, Cluj-Napoca, Romania
Venue:
ICCOM'10 Proceedings of the 14th WSEAS international conference on Communications
Year:
2010

Citing 3
Cited 0

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Abstract

In this paper, adaptive modulation and coding (AMC) and repetition coding are considered as means to improve the link performance of Mobile WiMAX systems. The system evaluation is done starting from the applications error requirements in the attempt to achieve an optimum utilization of the available resources based on the variable channel conditions, without degrading too much the overall performance. The results target a multipath fading environment, and are expressed in terms of the total achievable link throughput and operating range; the adaptive modulation switching points are identified also.