Developing a Wireless Ad-Hoc Network using MAC Schemes
Journal Title: International Journal of Computer Science & Engineering Technology - Year 2013, Vol 4, Issue 2
Abstract
A mobile user can connect to a LAN by using a wireless connection which is known as Wireless LAN (WLAN). WLAN uses high frequency waves instead of wire to communicate between nodes. Here signals are of limited range. WLANs combine data connectivity with user mobility, and, through simplified configuration, enable movable LANs. IEEE 802.11 standard provides technical specifications for the wireless interfaces. There are two modes of operations in WLAN.One is the presence of control module often called as based station or IEEE 802.11 calls them access points and the second one is ad hoc or peerto- peer connectivity. Three basic medium access control (MAC) mechanisms have been defined for IEEE 802.11: the mandatory basic method based on a version of carrier sense multiple access with collision avoidance (CSMA/CA), an optional method avoiding the hidden terminal problem and the third one is a contention-free polling method. The mandatory MAC mechanism and the optional method of IEEE 802.11 are known as distributed coordination function (DCF) whereas the third method is called as point coordination function (PCF). DCF is CSMA/CA with binary exponential backoff algorithm. DCF with optional RTS/CTS scheme in 802.11 MAC protocol avoids the problem of hidden terminals. In this paper, we have studied the 802.11 wireless LAN (WLAN) and the working of DCF in wireless LANs (WLANs).
Authors and Affiliations
Pavan Kumar Vishvakarma
Keywords
Related Articles
- EP ID EP125364
- DOI -
- Views 96
- Downloads 0
Character Recognition using Ensemble classifier
To improve the accuracy of data classification systems, several techniques using classifier fusion have been suggested. This paper proposed a model of classifier fusion for character recognition problem. The work present...
Performance Analysis of DCT Based Digital Image Watermarking Using Color Spaces Effects
Digital watermarking is the field of digital image processing which deals with hiding information in a digital content. In this paper, performance analysis of DCT (Discrete Cosine Transform) based digital image watermark...
A Comprehensive Review on the Relevance Feedback in Visual Information Retrieval
Visual information retrieval in images and video has been developing rapidly in our daily life and is an important research field in content-based information indexing and retrieval, automatic annotation and structuring...
Interactive TV: A step ahead for imparting education in India
“The number one benefit of information technology is that it empowers people to do what they want to do. It lets people be creative. It lets people be productive. It lets people learn things they didn't think they could...
Network Capacity Improvement through Efficient Data Delivery in Mobile Ad-Hoc Networks
Mobile Ad Hoc networks are being increasingly used in wireless communication with many technological enhancements. One of the major issues in such an infrastructure less network is the delivery of the data packets in an...