RESOURCE ALLOCATION IN 802.11AX NETWORKS

Methods of selection of Voice over Internet Protocol (VoIP), video and other users to meet quality of service (QoS) goals and optimize overall performance in 802.11ax networks are provided. These methods allow policy based decisions such as controlling the number of video, VoIP or other users or sub-channel sizes for video (or other) users or deciding data rate (or associated modulation and coding scheme) for each user in each scheduling interval (SI), and allow dynamic decisions for the value of the SI

Centralized Contention Based MAC for OFDMA WLAN

The IEEE 802.11 wireless local area network (WLAN) is the most widely deployed communication standard in the world. Currently, the IEEE 802.11ax draft standard is one of the most advanced and promising among future wireless network standards. However, the suggested uplink-OFDMA (UL-OFDMA) random access method, based on trigger frame-random access (TF-R) from task group ax (TGax), does not yet show satisfying system performance. To enhance the UL-OF DMA capability of the IEEE 802.11ax draft standard, we propose a centralized contention-based MAC (CC-MAC) and describe its detailed operation. In this paper, we analyze the performance of CC-MAC by solving theMarkov chain model and evaluating BSS throughput compared to other methods, such as DCF and TF-R, by computer simulation. Our results show that CC-MAC is a scalable and efficient scheme for improving the system performance in a UL-OFDMA random access situation in IEEE 802.11ax.112Ysciescopu

Role of Wireless technology in mobile augmented reality system (MARS)

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A PERFORMANCE ANALYSIS OF IEEE 802.11ax NETWORKS

The paper is focused on the forthcoming IEEE 802.11ax standard and its influence on Wi-Fi networks performance. The most important features dedicated to improve transmission effectiveness are presented. Furthermore, the simulation results of a new transmission modes are described. The comparison with the legacy IEEE 802.11n/ac standards shows that even partial implementation of a new standard should bring significant throughput improvements