Universal Journal of Electrical and Electronic Engineering 7(3): 219-226, 2020 http://www.hrpub.org
DOI: 10.13189/ujeee.2020.070306
Transmit Antenna Selection Strategies for SC- FDMA-
IDMA Massive MIMO Systems
Roopali Agarwal
*
, M. Shukla
Department of Electronics Engineering, Harcourt Butler Technical University, Kanpur, India
Received March 17, 2020; Revised April 13, 2020; Accepted April 27, 2020
Copyright©2020 by authors, all rights reserved. Authors agree that this article remains permanently open access under
the terms of the Creative Commons Attribution License 4.0 International License
Abstract The 5 G wireless offers many advancements
over the prevalent 4 G LTE communication networks, such
as enhanced data transmission rates (in order of Gbps),
Substantially reduced latency, many times increase in the
Base Station Capacity and praiseworthy betterments in the
QoS offered to the users. IDMA has already proven its
potential in 5 G and it can be easily integrated in to massive
MIMO systems. The ideology behind the concept of
Massive MIMO is to match the requirement for efficient
usage of spectrum, and is implemented using several
numbers of antennas at the Base Station, catering to a
number of subscribers concurrently using same band of the
given frequency. However, the cost and complexity of
implementation of such large-scale antenna systems is
quite high. Thus for reduction in the number of radio
frequency chains, the technique of Transmit Antenna
Selection is used. In this paper, we propose two transmit
antenna selection strategies considered for individual user
or overall users based on selection criteria maximum sum
rate or minimum bit error performance considering for
(MIMO) multiuser multiple input and multiple output
single carrier frequency division multiple access based
interleave division multiple access wireless system
(MIMO-SCFDMA-IDMA). We have taken this scheme for
the uplink communication and selection of the subcarrier is
through the bulk selection. The performance may get
degraded in case of heavy load of multiple subcarriers
attached to one antenna, which will in turn call for the role
of power amplifier and thus efficiency of the system may
go down. Therefore, here we prefer bulk subcarrier
selection instead of per subcarrier selection. It is shown in
this paper that enhanced sum rate can be achieved as more
users are allowed to transmit concurrently, and thus
multiuser gain is achieved. We also demonstrated the
comparison with simulation result of sum rate performance
and Bit error rate performance of varying users. Result
shows that antenna selection based on overall system is
better than the antenna selection considering each user.
Keywords Antenna Selection, Large MIMO,
SC-FDMA, IDMA, MMSE Detection, Interleaver
1. Introduction
Multiple input multiple output (MIMO) systems are
necessary part of various wireless standards such as 4G,
WiMax, 802.11n, HSPA+.MIMO is that the technique to
transfer the information independently from over one
antenna at the same time, and at receiver end information is
received by one or more antenna, without additional
bandwidth or transmit power, better performance and
higher data rates can be obtained in MIMO system, but the
eminent problem of MIMO systems arises due to the
increase in complexness and cost induced by RF chain [1].
Antenna selection is a robust technique for providing
low complexity to the system and aggrandizing the
performance. Low complexity with low cost of the system
is brought about by reducing the number of RF chains in
spite of using complete RF chains.
As compared to the OFDMA techniques, the peak to
average power ratio is less in the SC-FDMA scheme, and
due to this quality, it finds its suitability in the third
generation partnership project (3GPP) long-term evolution
(LTE) and in the Fifth generation uplink communications
also.
In communication systems, the noise and distortion of
the signal due to the impairment in the channel may cause
burst errors were not only discrete bits become in error but
also a consequent group of bits. To combat such type of
errors, the interleaveres are introduced in the system where
the bits are reordered at the transmitter to spread the burst
error when it occurs and converting them from burst error
to discrete errors. At the receiver end, the interleaved
information is organized back to the initial sequence with