WYV13

Design and implementation of Wi-Fi MAC transmitter using Verilog HDL

Bhavikatti, A.M. ;

Advance Computing Conference, 2009. IACC 2009. IEEE International

DOI:10.1109/IADCC.2009.4808970

Project Title:Design and implementation of Wi-Fi MAC transmitter using Verilog HDL

Domain:VLSI

Reference:IEEE

D.O.I:10.1109/IADCC.2009.4808970

Software Tool :XILINX

Language : Verilog HDL

Developed By:Wine Yard Technologies, Hyderabad

Design and implementation of Wi-Fi MAC transmitter using Verilog HDL

Abstract:

Objective of the project:

1. Architectural Design of IEEE 802.11 Protocol from specs.

2. Behavioral/RTL modeling of Design blocks

3. Design of stimulus modules to test the functionality of Design blocks.

4. Synthesize design to extract Gate level net list.

5. Perform the post Synthesis (Logical) Simulation of the design

6. Implementing the design towards the Xilinx FPGA device.

Description of the Project:

WiFi (Wireless Fidelity) is a wireless technology based on a cellular architecture where system is subdivided into cells. WiFi is the wireless way to handle networking. It is also known as 802.11 networking and wireless networking. The big advantage of WiFi is its simplicity. You can connect computers anywhere in your home or office without the need for wires. The computers connect to the network using radio signals, and computers can be up to 100 feet or so apart. WiFi transmitter implements the Basic Service set (BSS) and controlled by the base station called access point. These access points are connected with distribution system.

The transmitter is responsible for transmission and generation of various entities like Preamble includes synchronization and Start frame delimiter (SFD), PLCP Header used to decode the frame consists of PLCP_PDU Length word, PLCP Signaling Field and Header Error Check Field and Mac Data Frame.This Design coding, Simulation, Logic Synthesis and Implemented will be done using various EDA tools.

Circuit Diagrams:

Applications:

  1. Digital systems designing
  2. Digital signal processing
  3. Wireless Communications
  4. Computer graphics
  5. Embedded systems
  6. Computer networks

Advantages:

  1. Area Efficient Wi-Fi Transmitter
  2. Low power and high speed protocol

Conclusion:

Satisfying the growing demand for BWA in underserved markets has been a continuing challenge for service providers, due to the absence of a truly global standard. A standard that would enable companies to build systems that will effectively reach underserved business and residential markets in a manner that supports infrastructure build outs comparable to cable,DSL, and fiber. For years, the wildly successful 802.11x or WiFi wireless LAN technology has been used in BWA applications along with a host of proprietary based solutions. When the WLAN technology was examined closely, it was evident that the overall design and feature set available was not well suited for outdoor BWA applications. It could be done, it is being done,but with limited capacity in terms of bandwidth and subscribers, range and a host of other issues made it clear this approach while a great fit for indoor WLAN was a poor fit for outdoor BWA.

The complex and fully developed standard would be required to address both the physical layer environment (outdoor versus indoor RF transmissions) and the Quality of Service (QoS) needs demanded by the BWA and last mile access market. Many WiMAX

Company members are active in both the IEEE 802.16 standards development and the IEEE 802.11 efforts for Wireless LAN, and envision the combination of 802.16a and 802.11 creating a complete wireless solution for delivering high speed Internet access to businesses, homes, and WiFi hot spots.

In reviewing the standard, the technical details and features that differentiate , the distributed WiMAX and wi-fi network architecture can be significantly lighter and easier to install than traditional cellular based network designs and can substantially reduce capital and operational expenses. By leveraging standard IP network equipment, operators will be able to deploy at greater speed and with reduced spend.

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