Performance analysis for IEEE 80211 distributed coordination function in radio-over-fiber-based distributed antenna systems

Performance Analysis of the IEEE 802.11 Distributed Coordination Function

Performance analysis of IEEE 802.11e enhanced distributed coordination function

Absfmcl-The IEEE 802.11e working group aims to enhance the current 802.11 MAC to support the integrated data and voice (or video) communications. Till now a draft of the IEEE 802.11e EDCF has been proposed. In this paper, we evaluate the performance of the EDCF by dividing the traffic into two categories, namely real-time packets and non real-time packets, and use an analytical model to quantif...

coordination of protective schemes in distribution and subtransmission systems including distributed generation

نصب منابع پراکنده در سیستم های توزیع و فوق توزیع علاوه بر مزیت های فراوان، مشکلاتی را هم به همراه دارد. یکی از این مشکلات تأثیر این منابع روی اندازه جریان های اتصال کوتاه است. به طور معمول از حفاظت های مبتنی بر اصل جریان زیاد در سیستم های توزیع و فوق توزیع استفاده می شود. از مهمترین طرح های حفاظتی استفاده شده در فیدرهای توزیع، حفاظت فیوز- ریکلوزر است. همچنین از طرح های حفاظتی جریان زیاد جهتی در...

Performance Analysis of IEEE 802.11 Modified Distributed Coordination Function for Wireless LANs Based on Data rate

IEEE has standardized 802.11 protocol for Wireless Local Area Networks.The 802.11 MAC standard specifies two access mechanisms, the Distributed Coordination Function (DCF) and Point Coordination Function (PCF). DCF is considered as the basic MAC mechanism, based on the carrier sensing multiple access with collision avoidance (CSMA-CA) protocol, which is introduced to avoid the collision.The mai...

Green Wireless Network Deployments in Indoor Environments Using Radio-over-Fiber Distributed Antenna Systems

Distributed antenna systems (DAS) are known to improve coverage and performance of wireless communicat ions in indoor environments. In the present paper, we propose a method to determine the position of distributed antennas that optimizes the network capacity for a given deployment scenario. We also consider power consumption measurements of commercially-available W i-Fi access points and dongl...