The Effect of Finite Population on IEEE802.11 Wireless LANs Throughput/Delay Performance
نویسندگان
چکیده
The theoretical performance of CSMA/CA, as it is used in IEEE802.11 wireless LANs, is investigated in this paper. We adopt and modify a previously presented analytical approach for CSMA/CA protocols in wireless LANs with finite number of stations and find closed-form equations for throughput and delay. The presented numerical results highlight the characteristics of both CSMA/CA methods and define how their performance depends on the number of stations and on traffic conditions.
منابع مشابه
IEEE802.11-based Wireless LAN Achieving Small Delay Fluctuation
Real-time applications such as phone, videoconference, multimedia streaming, are typical applications which require relatively small delay and small delay fluctuation. To meet the QoS requirements of these applications, network infrastructures should have the ability to accommodate real-time traffic. Recently, IEEE802.11 wireless LANs, fundamentally based on CSMA/CA, have been widely used as pa...
متن کاملA performance comparison between ad hoc and centrally controlled CDMA wireless LANs
A performance comparison is presented between two types of code-division multiple-access wireless local area networks: centrally controlled and ad hoc networks. Based on a finite-population model, the network throughput, the average packet delay, and the network first exit time are derived for both systems. Two aspects of the performance comparison are addressed: 1) the comparison between the c...
متن کاملDecentralized Control Mechanism Suppressing Delay Fluctuation in Wireless LANs
Real-time applications such as phone, videoconference, multimedia streaming, are typical applications which require relatively small delay and small delay fluctuation. To meet the QoS requirements of these applications, network infrastructures should have the ability to accommodate real-time traffic. Recently, IEEE802.11 wireless LANs, fundamentally based on CSMA/CA, have been widely used as pa...
متن کاملReprint Voice Communications over IEEE802.11 Wireless LANs interconnected using ATM links
This paper presents a new polling scheme, that can be used at the Access Point of an IEEE802.11 wireless network as part of the Point Coordination Function, in order to provide guaranteed QoS support of voice traffic. The so called Cyclic Shift polling scheme along with the use of silence detection at the mobile terminals increases the supported number of calls, as a function of the overall rat...
متن کاملOptimal Constant-Window Backoff Scheme for IEEE 802.11 DCF in Single-Hop Wireless Networks Under Finite Load Conditions
Existing backoff scheme’s optimization of IEEE 802.11 DCF MAC protocol consider only saturated networks or asymptotic conditions. In real situations, traffic is bursty or streamed at low rates so that stations do not operate usually in saturated regime. In this work, we propose and analyze a backoff enhancement for IEEE802.11 DCF that requires information only about the network size and that is...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002