TY - JOUR
T1 - Sparse Vector Coding-Based Multi-Carrier NOMA for In-Home Health Networks
AU - Zhang, Xuewan
AU - Yang, Liuqing
AU - Ding, Zhiguo
AU - Song, Jian
AU - Zhai, Yunkai
AU - Zhang, Di
N1 - Publisher Copyright:
© 1983-2012 IEEE.
PY - 2021/2
Y1 - 2021/2
N2 - In-home health networks greatly rely on the massive connected monitoring devices. Compared to orthogonal multiple access (OMA), non-orthogonal multiple access (NOMA) can connect more monitoring devices and enhance the spectrum efficiency (SE) performance, which makes it an ideal solution to in-home health networks. However, conventional NOMA (C-NOMA) is mostly constrained to single-carrier scenario. The problem of multi-carrier NOMA lies in the inter-carrier interference (ICI) from neighboring carriers. In this article, we propose a sparse vector coding-based NOMA (SVC-NOMA) to suppress the ICI. We give closed-form expressions of capacity and symbol error rate (SER) performances for both C-NOMA and SVC-NOMA within the considered multi-carrier scenario. Simulation results demonstrate that compared to C-NOMA, SVC-NOMA has better capacity and SER performances. In addition, we find from our results that there is a trade-off between SVC-NOMA's ICI suppression ability and the system capacity performance.
AB - In-home health networks greatly rely on the massive connected monitoring devices. Compared to orthogonal multiple access (OMA), non-orthogonal multiple access (NOMA) can connect more monitoring devices and enhance the spectrum efficiency (SE) performance, which makes it an ideal solution to in-home health networks. However, conventional NOMA (C-NOMA) is mostly constrained to single-carrier scenario. The problem of multi-carrier NOMA lies in the inter-carrier interference (ICI) from neighboring carriers. In this article, we propose a sparse vector coding-based NOMA (SVC-NOMA) to suppress the ICI. We give closed-form expressions of capacity and symbol error rate (SER) performances for both C-NOMA and SVC-NOMA within the considered multi-carrier scenario. Simulation results demonstrate that compared to C-NOMA, SVC-NOMA has better capacity and SER performances. In addition, we find from our results that there is a trade-off between SVC-NOMA's ICI suppression ability and the system capacity performance.
KW - In-home health network
KW - capacity
KW - non-orthogonal multiple access
KW - sparse vector coding
KW - symbol error rate
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U2 - 10.1109/JSAC.2020.3020679
DO - 10.1109/JSAC.2020.3020679
M3 - Article
AN - SCOPUS:85090450468
SN - 0733-8716
VL - 39
SP - 325
EP - 337
JO - IEEE Journal on Selected Areas in Communications
JF - IEEE Journal on Selected Areas in Communications
IS - 2
M1 - 9181534
ER -