A spatial clustering group division-based OFDMA access protocol for the next generation WLAN

2019 ◽  
Vol 25 (8) ◽  
pp. 5083-5097 ◽  
Author(s):  
Yong Li ◽  
Bo Li ◽  
Mao Yang ◽  
Zhongjiang Yan
Keyword(s):  
Spatial Clustering ◽  
Next Generation ◽  
Access Protocol ◽  
The Next Generation Wlan

scholarly journals Spatial Clustering Group Based OFDMA Access Protocol for the Next Generation WLAN

2018 ◽  
Vol 36 (5) ◽  
pp. 897-903
Author(s):  
Yong Li ◽  
Bo Li ◽  
Mao Yang ◽  
Zhongjiang Yan ◽  
Qiao Qu
Keyword(s):  
Theoretical Analysis ◽  
Multiple Access ◽  
Local Area Network ◽  
Spatial Clustering ◽  
Area Network ◽  
Next Generation ◽  
Access Protocol ◽  
Access Channel ◽  
Simulation Results ◽  
The Next Generation Wlan

The next generation wireless local area network (WLAN) needs to significantly improve the area throughput in high dense scenario. Orthogonal Frequency Division Multiple Access (OFDMA), considered as the key technology of next generation WLAN, has been adopted by next generation WLAN communication standard. However, the existing studies on the OFDMA protocol have the interference extensions problem, i.e. multiple users are located in the dispersive area, and then the geographical interference area is enlarged. In this paper, a spatial clustering group based OFDMA multiple access protocol (SCG-OFDMA) is proposed. SCG-OFDMA enables the users in close area to form spatial clustering groups dynamically, then the users in the spatial clustering group access channel and transmit data by OFDMA. It reduces the geographical interference area, and enhances the area throughput. The theoretical analysis of SCG-OFDMA is also carried out. The simulation results of SCG-OFDMA are in agreement with the theoretical analysis. Simulation results show that the area throughput of SCG-OFDMA is higher than existing OFDMA protocol and distributing coordination function by 15.98% and 31.26% respectively. It provides a reference to design media access control protocol of the next generation WLAN.

An OFDMA-based joint reservation and cooperation MAC protocol for the next generation WLAN

2017 ◽  
Vol 25 (2) ◽  
pp. 471-485 ◽  
Author(s):  
Yongping Zhang ◽  
Bo Li ◽  
Mao Yang ◽  
Zhongjiang Yan ◽  
Xiaoya Zuo
Keyword(s):  
Mac Protocol ◽  
Next Generation ◽  
The Next Generation Wlan

Wireless IEEE 802.11-Based Networking Approaches for Industrial Networked Systems

2013 ◽  
pp. 286-305
Author(s):  
Ricardo Moraes ◽  
Francisco Vasques
Keyword(s):  
Ieee 802.11 ◽  
Communication Systems ◽  
Networked Control Systems ◽  
Voice Over Ip ◽  
Next Generation ◽  
Medium Access ◽  
Communication Services ◽  
Access Protocol ◽  
Wide Range ◽  
New Applications

During the last few years, the demand for Real-Time (RT) communication has been steadily increasing due to a wide range of new applications. Remarkable examples are VoIP (Voice over IP) and Networked Control Systems (NCS). For such RT applications, the support of timely communication services is one of the major requirements. The purpose of this chapter is to survey the state-of-the-art on RT communication in CSMA-based networks and to identify the most suitable approaches to deal with the requirements imposed by next generation communication systems. This chapter focuses on one of the most relevant solutions that operate in shared broadcast environments, according to the CSMA medium access protocol, the IEEE 802.11 standard. From this survey, it becomes clear that traditional CSMA-based networks are not able to deal with the requirements imposed by next generation communication systems. More specifically, they are not able to handle uncontrolled traffic sources sharing the same broadcast environment.

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