MadMAC: Building a Reconfigurable Radio Testbed using Commodity 802.11 Hardware

نویسندگان

  • Ashish Sharma
  • Mohit Tiwari
  • Haitao Zheng
چکیده

Essential to adaptive devices is the ability to reconfigure Medium Access Control (MAC) protocols to environment conditions and application requirements. We propose MadMAC, a platform for building reconfigurable MAC protocols on commodity 802.11x hardware. Programming on top of MadWiFi, MadMAC transmits packets at configurable time and frame format. In this paper, we build a TDMA-based MAC protocol using MadMAC, and examine the impact of various design parameters. Experimental results show that MadMAC allows flexible control of protocol settings with small processing overhead. We also observe that the TDMA MAC protocol provides 20% throughput improvement over the CSMA protocol in a simple two-node network.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Verification of Common 802.11 MAC Model Assumptions

There has been considerable success in analytic modeling of the 802.11 MAC layer. These models are based on a number of fundamental assumptions. In this paper we attempt to verify these assumptions by taking careful measurements using an 802.11e testbed with commodity hardware. We show that the assumptions do not always hold but our measurements offer insight as to why the models may still prod...

متن کامل

Architecting a High-Capacity Last-Mile Wireless Mesh Network

Despite availability of multiple non-overlapping channels in the 2.4GHz and the 5GHz spectrum, most IEEE 802.11-based multi-hop ad hoc networks operate in a single channel. This substantially reduces the bandwidth available to each node due to interference between successive hops on the same path as well as between neighboring paths. Figure 1 depicts the severity of such interference. As a resu...

متن کامل

Increasing Fairness and Efficiency Using the MadMac Protocol in Ad Hoc Networks

The IEEE 802.11 MAC layer is known for its unfairness behavior in ad hoc networks. Introducing fairness in the 802.11 MAC protocol may lead to a global throughput decrease. It is still a real challenge to design a fair MAC protocol for ad hoc networks that is distributed, topology independent, that relies on no explicit information exchanges and that is efficient, i.e. that achieves a good aggr...

متن کامل

A Multi-radio 802.11 Mesh Network Architecture

The focus of this paper is to offer a practical multi-radio mesh network architecture that can realize the benefits of multiple radios. Our architecture provides solutions to challenges in three key areas. The first is the construction of a split wireless router that enables modular wireless mesh routers to be constructed from commodity hardware. The second is the design of a centralized channe...

متن کامل

UB-ANC: An Open Platform Testbed for Software-Defined Airborne Networking and Communications

We present the University at Buffalo’s Software-Defined Airborne Networking and Communications Testbed (UB-ANC). UB-ANC is an open software/hardware platform that aims to facilitate rapid testing and repeatable comparative evaluation of various airborne networking and communications protocols at different layers of the network protocol stack. In particular, it combines quadcopters capable of au...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006