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Joint Codebook Design for Multi-Cell NOMA

Abstract: 

For spreading-based multiple access, whether orthogonal (OMA) or non-orthogonal (NOMA), the spreading sequences (signatures) are selected from a predefined codebook. When operating in a cellular system, intercell interference will be inherently present between close base stations that share the same resources. If the codebook is reused across the different cells, then intercell interference can cause a full collision of the interfering users in the code-domain, thus deteriorating their performance, especially those at the cell-edge. In this paper, we propose a method for reducing intercell interference by means of jointly designed codebooks. The criterion for the codebook design is to minimize the maximum cross-correlation between the signatures of the interfering cells. In order to obtain such codebooks, we employ the algorithm of alternating projection. We finally apply the method to two interfering cells for both NOMA and OMA systems, with the users being uniformly distributed in the cells, and show that it can provide a considerable gain to the cell-edge users.

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Paper Details

Authors:
Bashar Tahir, Stefan Schwarz, Markus Rupp
Submitted On:
7 May 2019 - 1:29pm
Short Link:
Type:
Poster
Event:
Presenter's Name:
Bashar Tahir
Paper Code:
3189
Document Year:
2019
Cite

Document Files

JointCodebookDesignNOMA_Poster.pdf

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[1] Bashar Tahir, Stefan Schwarz, Markus Rupp, "Joint Codebook Design for Multi-Cell NOMA", IEEE SigPort, 2019. [Online]. Available: http://sigport.org/3928. Accessed: Oct. 14, 2019.
@article{3928-19,
url = {http://sigport.org/3928},
author = {Bashar Tahir; Stefan Schwarz; Markus Rupp },
publisher = {IEEE SigPort},
title = {Joint Codebook Design for Multi-Cell NOMA},
year = {2019} }
TY - EJOUR
T1 - Joint Codebook Design for Multi-Cell NOMA
AU - Bashar Tahir; Stefan Schwarz; Markus Rupp
PY - 2019
PB - IEEE SigPort
UR - http://sigport.org/3928
ER -
Bashar Tahir, Stefan Schwarz, Markus Rupp. (2019). Joint Codebook Design for Multi-Cell NOMA. IEEE SigPort. http://sigport.org/3928
Bashar Tahir, Stefan Schwarz, Markus Rupp, 2019. Joint Codebook Design for Multi-Cell NOMA. Available at: http://sigport.org/3928.
Bashar Tahir, Stefan Schwarz, Markus Rupp. (2019). "Joint Codebook Design for Multi-Cell NOMA." Web.
1. Bashar Tahir, Stefan Schwarz, Markus Rupp. Joint Codebook Design for Multi-Cell NOMA [Internet]. IEEE SigPort; 2019. Available from : http://sigport.org/3928