Enhanced multi user detection technique of overloaded MIMO systems using Network Coding based HARQ

Author

Qayyum, Amna ; Khan, Adnan Ahmed ; Tasneem, Khawaja Tauseef

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Sci. & Technol., Islamabad, Pakistan

fYear

2014

fDate

15-17 Dec. 2014

Firstpage

1

Lastpage

6

Abstract

This work proposes a novel scheme for Multi User Detection (MUD), in an overloaded Multiple Input Multiple Output (MIMO) system where the number of Transmit antennas (N_t) is greater than the number of Receive antennas (N_r), using HARQ with Network Coding (NC). The primary aim of this work is to transform the overloaded systems into critically loaded (N_t = N_r) or underloaded MIMO (N_t <; N_r) systems while enhancing the performance. The performance measures are Bit Error Rate (BER) and Throughput. The proposed scheme substantially reduces the BER and packet drop rate with throughput enhancement up-to 20-25% as compared to traditional schemes proved in the end by the simulation results.

Keywords

MIMO communication; automatic repeat request; error statistics; multiuser detection; network coding; receiving antennas; telecommunication network reliability; transmitting antennas; BER; HARQ; MUD; NC; bit error rate; enhanced multiuser detection technique; multiple input multiple output system; network coding; overloaded MIMO systems; packet drop rate; receive antennas; throughput enhancement; transmit antennas; Bit error rate; Detectors; MIMO; Receiving antennas; Throughput; Vectors; Wireless communication; BER; HARQ; MIMO; MUD; NC;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communication Systems (ICSPCS), 2014 8th International Conference on

Conference_Location

Gold Coast, QLD

Type

conf

DOI

10.1109/ICSPCS.2014.7021117

Filename

7021117