TITLE:
Interference Mitigation Techniques Using Receiver Processing and Resource Allocation
AUTHORS:
Jesvin Veancy Boaz, Yogesh Palanichamy
KEYWORDS:
Cellular Network, Orthogonal Frequency Division Multiplexing, Interference, Scheduling, Post Processing Signal to Noise Ratio
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.10,
August
5,
2016
ABSTRACT: Heterogeneous network
consists of the pico cells overlaid over the macro cell coverage area in a
wireless cellular network. The pico cells are deployed to increase the capacity
of the homogeneous network by reusing the spectrum further. However, more users
will tend to be associated to the macro cell due to the fact that the transmit
power of the pico cell is low. In order to increase the number of users
associated to the pico cell, range extension techniques like biased association
are used. This will cause severe interference to cell edge users of the pico
cell from the macro cell causing degradation in throughput performance in the
cell range extension area. In this paper, interference mitigation using
receiver processing along with different scheduling techniques is proposed to
improve the throughput, average delay, and the packet delivery ratio
performance of the system. The performance comparison of the round robin,
proportional fair and modified largest weighted delay first (MLWDF) algorithm
for resource allocation using interference suppressing receiver is done, and
analyzed. It is shown that the MLWDF algorithm achieves the highest throughput
with minimum average delay of packets with the best delivery ratio.