Throughput evaluation for MIMO systems with partial CSIT and adaptive packet length

Authors:
Ancuţa Moldovan;Tudor Palade;Irina Vermeşan;Rebeca Colda;Emanuel Puşchiţă
Affiliations:
Communication Department, Technical University of Cluj-Napoca, Cluj-Napoca, Romania;Communication Department, Technical University of Cluj-Napoca, Cluj-Napoca, Romania;Communication Department, Technical University of Cluj-Napoca, Cluj-Napoca, Romania;Communication Department, Technical University of Cluj-Napoca, Cluj-Napoca, Romania;Communication 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
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Abstract

The paper analyses the enhancement in terms of throughput in an IEEE 802.11n wireless network, provided by the adaptation to the channel conditions of various design parameters. The use of multiple antennas at the physical layer also influences the performances of the upper layers, so the packet length is determined based on the interaction between the physical and the data layers. At the physical layer, the impact of the following parameters is considered: input SNR (Signal to Noise Ratio), constellation size, diversity order, the amount of information regarding the channel available at the transmitter. Adaptive packet length provides significant improvement, especially for low SNR values.