A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking
In traditional CSMA/CA-based MAC designs supporting successive interference cancellation (SIC), channel utilization is inefficient, because the inherited CSMA/CA-style contention approach often forces the whole channel to remain idle and the early released channel is not utilized. In this paper, we...
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doaj-9de2a8620d024e7cbeac31d6fef575262021-09-14T23:00:29ZengIEEEIEEE Access2169-35362021-01-01912486112487210.1109/ACCESS.2021.31057539515985A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined NetworkingFangxin Xu0https://orcid.org/0000-0002-3312-374XQinglin Zhao1https://orcid.org/0000-0003-4873-5631Li Feng2https://orcid.org/0000-0001-6172-8650Chao Yang3Jie Yang4https://orcid.org/0000-0003-0503-1634Tong Jin5https://orcid.org/0000-0003-4042-7917Hong Liang6https://orcid.org/0000-0001-7355-2365Faculty of Information Technology, Macau University of Science and Technology, Taipa, MacauFaculty of Information Technology, Macau University of Science and Technology, Taipa, MacauFaculty of Information Technology, Macau University of Science and Technology, Taipa, MacauCenter for Intelligent Batch Manufacturing Based on IoT Technology, Guangzhou, ChinaFaculty of Information Technology, Macau University of Science and Technology, Taipa, MacauFaculty of Information Technology, Macau University of Science and Technology, Taipa, MacauFaculty of Information Technology, Macau University of Science and Technology, Taipa, MacauIn traditional CSMA/CA-based MAC designs supporting successive interference cancellation (SIC), channel utilization is inefficient, because the inherited CSMA/CA-style contention approach often forces the whole channel to remain idle and the early released channel is not utilized. In this paper, we propose Multi-CQ, which is the first software-defined networking (SDN)-based MAC design for wireless LANs that supports SIC and significantly improves the channel utilization. Multi-CQ, adopting SDN’s functional separation idea and OFDMA, makes contention and data transmission be executed over two subchannels independently and concurrently, where the superposition coding are used for decoding combined signals, and multiple CQs (contention queues) are introduced to coordinate the concurrency. This concurrent execution greatly reduces the waste in channel contention. Next, adopting SDN’s central control idea, Multi-CQ controller selects nodes who can finish their frame transmissions in almost equal time, thereby improving the channel utilization. Finally, we develop a theoretical model to optimize bandwidth allocation for channel contention and data transmission. Extensive simulations verify the effectiveness of our design and the accuracy of our theoretical model. This study is also helpful to better design wireless MAC protocols supporting other advanced functionalities such as MU-MIMO.https://ieeexplore.ieee.org/document/9515985/SDNSICWiFi |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fangxin Xu Qinglin Zhao Li Feng Chao Yang Jie Yang Tong Jin Hong Liang |
spellingShingle |
Fangxin Xu Qinglin Zhao Li Feng Chao Yang Jie Yang Tong Jin Hong Liang A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking IEEE Access SDN SIC WiFi |
author_facet |
Fangxin Xu Qinglin Zhao Li Feng Chao Yang Jie Yang Tong Jin Hong Liang |
author_sort |
Fangxin Xu |
title |
A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking |
title_short |
A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking |
title_full |
A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking |
title_fullStr |
A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking |
title_full_unstemmed |
A Novel Successive-Interference-Cancellation- Aware Design for Wireless Networks Using Software-Defined Networking |
title_sort |
novel successive-interference-cancellation- aware design for wireless networks using software-defined networking |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2021-01-01 |
description |
In traditional CSMA/CA-based MAC designs supporting successive interference cancellation (SIC), channel utilization is inefficient, because the inherited CSMA/CA-style contention approach often forces the whole channel to remain idle and the early released channel is not utilized. In this paper, we propose Multi-CQ, which is the first software-defined networking (SDN)-based MAC design for wireless LANs that supports SIC and significantly improves the channel utilization. Multi-CQ, adopting SDN’s functional separation idea and OFDMA, makes contention and data transmission be executed over two subchannels independently and concurrently, where the superposition coding are used for decoding combined signals, and multiple CQs (contention queues) are introduced to coordinate the concurrency. This concurrent execution greatly reduces the waste in channel contention. Next, adopting SDN’s central control idea, Multi-CQ controller selects nodes who can finish their frame transmissions in almost equal time, thereby improving the channel utilization. Finally, we develop a theoretical model to optimize bandwidth allocation for channel contention and data transmission. Extensive simulations verify the effectiveness of our design and the accuracy of our theoretical model. This study is also helpful to better design wireless MAC protocols supporting other advanced functionalities such as MU-MIMO. |
topic |
SDN SIC WiFi |
url |
https://ieeexplore.ieee.org/document/9515985/ |
work_keys_str_mv |
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