A Novel Hybrid Slot Allocation Mechanism for 802.11e EDCA Protocol

A Novel Hybrid Slot Allocation Mechanism for 802.11e EDCA Protocol

This letter proposes a novel Hybrid Slot Allocation Mechanism (HSAM) to solve the high collision problem among four Access Categories (ACs) introduced by IEEE 802.11e EDCA protocol. In the HSAM, three time slots are assembled into a super-slot, each slot in the super slot is allocated to a particula...

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Veröffentlicht in:Information processing letters 2014-01, Vol.114 (1-2), p.25-30
Hauptverfasser: Yao, Xin-Wei, Wang, Wan-Liang, Wu, Teng-cao, Yao, Xiao-min, Yang, Shuang-Hua
Format: Artikel
Sprache:eng
Schlagworte:
Access category
Access control
Categories
Collision
Comparative analysis
Data processing
Data transmission
Delay
Design of algorithm
Differentiation
EDCA protocol
IEEE standards
Mathematical problems
Performance evaluation
Priorities
Scheduling
Service differentiation
Simulation
Slot allocation
Studies
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Beschreibung
Zusammenfassung:This letter proposes a novel Hybrid Slot Allocation Mechanism (HSAM) to solve the high collision problem among four Access Categories (ACs) introduced by IEEE 802.11e EDCA protocol. In the HSAM, three time slots are assembled into a super-slot, each slot in the super slot is allocated to a particular AC according to its priority. The main idea of HSAM is to stagger the transmission slots of different ACs to reduce collisions, while maintaining the service differentiation. Extensive results from simulations have demonstrated good performance of HSAM comparing with EDCA protocol in terms of throughput, packet loss and MAC delay.
ISSN:0020-0190
1872-6119
DOI:10.1016/j.ipl.2013.09.014