Satellite full mesh ATM LAN: interconnection, satellite access scheme, signaling and performance

1996 ◽  
pp. 346-357 ◽  
Author(s):  
Bernard Perrin ◽  
Roberto Donadio
Keyword(s):  
Access Scheme ◽  
And Performance

Hybrid Approach to Integrated QoS Capable Protocols for Wireless LANs

2010 ◽  
pp. 1-29
Author(s):  
Thomas D. Lagkas
Keyword(s):  
Hybrid Approach ◽  
Superior Performance ◽  
Resource Assignment ◽  
Network Applications ◽  
Access Scheme ◽  
Wireless Environment ◽  
And Performance ◽  
Hybrid Coordination ◽  
Coordination Function

The recent evolution of wireless networking has led the market to increased service demands. Thus, the emerged necessity is to develop specialized mechanisms that provide efficient QoS (Quality of Service) for both traditional and modern network applications in the challenging wireless environment. The respective IEEE proposal comes from the 802.11e workgroup which has developed the Hybrid Coordination Function (HCF). HCF is definitely capable of providing QoS, however, it exhibits significant limitations. This work presents an alternative protocol with improved behavior and performance. The Priority Oriented Hybrid Access (POHA) is a complete channel access mechanism able to provide integrated QoS for all types of traffic and network applications. POHA combines a polling based and a TDMA access scheme, adapts to the dynamic conditions of modern WLANs, improves channel utilization and station feedback, provides medium contention fairness, eliminates collisions, differentiates traffic based on priorities, supports dynamic resource assignment, and instantly negotiates the quality levels of the offered traffic streams trying to support multiple streams with best possible quality. POHA, compared with HCF, exhibits generally superior performance.

scholarly journals Stability and performance issues of a relay assisted multiple access scheme with MPR capabilities

2014 ◽  
Vol 42 ◽  
pp. 70-76 ◽  
Author(s):  
Nikolaos Pappas ◽  
Anthony Ephremides ◽  
Apostolos Traganitis
Keyword(s):  
Multiple Access ◽  
Access Scheme ◽  
Performance Issues ◽  
And Performance
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