Complexity-reduced per-antenna multiple access interference cancellation for DAN using DS-CDMA

S. Inoshita; Hiroyuki Miyazaki; Fumiyuki Adachi

doi:10.1109/VTCFall.2014.6965912

Complexity-reduced per-antenna multiple access interference cancellation for DAN using DS-CDMA

S. Inoshita, Hiroyuki Miyazaki, Fumiyuki Adachi

Research Organization of Electrical Communication (ROEC)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

DS-CDMA allows all accessing users to share the same carrier frequency and hence, can alleviate the sophisticated channel management problem. Recently, we investigated a distributed antenna network (DAN) using direct-sequence code division multiple access (DS-CDMA) with joint antenna diversity and equalization and showed that DAN achieves higher uplink capacity than centralized antenna network (CAN). The uplink capacity is limited due to multiple access interference (MAI). In this paper, to further improve the uplink capacity, we propose a complexity-reduced per-antenna MAI cancellation before diversity combining, which is suitable for DAN using DS-CDMA. In the per-antenna MAI cancellation, first, interfering users on each antenna are sorted in descending order of the instantaneous received power. Then, a predetermined number of interfering users having the highest received powers are selected on each antenna to be cancelled in the frequency-domain before diversity combining. It is shown by computer simulation that per-antenna MAI cancellation before diversity combining achieves almost the same uplink capacity as full MAI cancellation after diversity combining.

Original language	English
Title of host publication	2014 IEEE 80th Vehicular Technology Conference, VTC2014-Fall, Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479944491, 9781479944491
DOIs	https://doi.org/10.1109/VTCFall.2014.6965912
Publication status	Published - 2014 Nov 24
Event	80th IEEE Vehicular Technology Conference, VTC 2014-Fall - Vancouver, Canada Duration: 2014 Sep 14 → 2014 Sep 17

Publication series

Name	IEEE Vehicular Technology Conference
ISSN (Print)	1550-2252

Other

Other	80th IEEE Vehicular Technology Conference, VTC 2014-Fall
Country	Canada
City	Vancouver
Period	14/9/14 → 14/9/17

Keywords

CCI; TPC
DAN
DS-CDMA
MAI cancellation
Uplink capacity

ASJC Scopus subject areas

Computer Science Applications
Electrical and Electronic Engineering
Applied Mathematics

Access to Document

10.1109/VTCFall.2014.6965912

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Cite this

Inoshita, S., Miyazaki, H., & Adachi, F. (2014). Complexity-reduced per-antenna multiple access interference cancellation for DAN using DS-CDMA. In 2014 IEEE 80th Vehicular Technology Conference, VTC2014-Fall, Proceedings [6965912] (IEEE Vehicular Technology Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCFall.2014.6965912

Complexity-reduced per-antenna multiple access interference cancellation for DAN using DS-CDMA. / Inoshita, S.; Miyazaki, Hiroyuki; Adachi, Fumiyuki.

2014 IEEE 80th Vehicular Technology Conference, VTC2014-Fall, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2014. 6965912 (IEEE Vehicular Technology Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Inoshita, S, Miyazaki, H & Adachi, F 2014, Complexity-reduced per-antenna multiple access interference cancellation for DAN using DS-CDMA. in 2014 IEEE 80th Vehicular Technology Conference, VTC2014-Fall, Proceedings., 6965912, IEEE Vehicular Technology Conference, Institute of Electrical and Electronics Engineers Inc., 80th IEEE Vehicular Technology Conference, VTC 2014-Fall, Vancouver, Canada, 14/9/14. https://doi.org/10.1109/VTCFall.2014.6965912

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