Advanced

Multiuser Bandwidth Minimization with Individual Rate Requirements for Non-Orthogonal Multiple Access

Rusek, Fredrik LU ; Chitti, Krishna LU and Chaitanya, Tumula (2017) 85th IEEE Vehicular Technology Conference, VTC Spring 2017 In IEEE 85th Vehicular Technology Conference
Abstract
Non-Orthogonal Multiple Access (NOMA) for a multi-user single- input single-output (SISO) setup is studied in the power and the frequency domains simultaneously. The problem of sum-bandwidth minimization under perfect channel state information is solved for various combinations of rate requirements and user pairings. In this process, an iterative Tabu-search based algorithm is applied to avoid an exhaustive search over all possible user pairing combinations. It is assumed that each constituent user of the pair has a required quality of service and a flat power spectrum. Further, for each user pair, the NOMA operating region is defined by dividing the allocated bandwidth into two non-overlapping Orthogonal Multiple Access (OMA) sub-bands... (More)
Non-Orthogonal Multiple Access (NOMA) for a multi-user single- input single-output (SISO) setup is studied in the power and the frequency domains simultaneously. The problem of sum-bandwidth minimization under perfect channel state information is solved for various combinations of rate requirements and user pairings. In this process, an iterative Tabu-search based algorithm is applied to avoid an exhaustive search over all possible user pairing combinations. It is assumed that each constituent user of the pair has a required quality of service and a flat power spectrum. Further, for each user pair, the NOMA operating region is defined by dividing the allocated bandwidth into two non-overlapping Orthogonal Multiple Access (OMA) sub-bands and an overlapping NOMA sub-band. Such an assumption achieves a greater capacity region when compared to the conventional power domain only NOMA. Also for most of the rate requirements, only one of the OMA sub-bands is active in addition to the NOMA sub-band. This simplifies the NOMA user rate expressions and power allocation process. To verify the performance gain, NOMA is compared to an OMA technique. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
IEEE 85th Vehicular Technology Conference
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
85th IEEE Vehicular Technology Conference, VTC Spring 2017
external identifiers
  • scopus:85040592539
ISBN
978-1-5090-5933-1
978-1-5090-5932-4
DOI
language
English
LU publication?
yes
id
49829fea-c95d-4ec5-bd64-4775cb198a8d
date added to LUP
2018-02-08 09:56:31
date last changed
2018-05-29 09:30:05
@inproceedings{49829fea-c95d-4ec5-bd64-4775cb198a8d,
  abstract     = {Non-Orthogonal Multiple Access (NOMA) for a multi-user single- input single-output (SISO) setup is studied in the power and the frequency domains simultaneously. The problem of sum-bandwidth minimization under perfect channel state information is solved for various combinations of rate requirements and user pairings. In this process, an iterative Tabu-search based algorithm is applied to avoid an exhaustive search over all possible user pairing combinations. It is assumed that each constituent user of the pair has a required quality of service and a flat power spectrum. Further, for each user pair, the NOMA operating region is defined by dividing the allocated bandwidth into two non-overlapping Orthogonal Multiple Access (OMA) sub-bands and an overlapping NOMA sub-band. Such an assumption achieves a greater capacity region when compared to the conventional power domain only NOMA. Also for most of the rate requirements, only one of the OMA sub-bands is active in addition to the NOMA sub-band. This simplifies the NOMA user rate expressions and power allocation process. To verify the performance gain, NOMA is compared to an OMA technique.},
  author       = {Rusek, Fredrik and Chitti, Krishna and Chaitanya, Tumula},
  booktitle    = {IEEE 85th Vehicular Technology Conference},
  isbn         = {978-1-5090-5933-1},
  language     = {eng},
  month        = {06},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {Multiuser Bandwidth Minimization with Individual Rate Requirements for Non-Orthogonal Multiple Access},
  url          = {http://dx.doi.org/},
  year         = {2017},
}