• Corpus ID: 14418988

A Comparison of Frequency Hopping and Direct Sequence Spread Spectrum Modulation for IEEE 802.11 Applications at 2.4 GHz

  title={A Comparison of Frequency Hopping and Direct Sequence Spread Spectrum Modulation for IEEE 802.11 Applications at 2.4 GHz},
  author={Carl Andren and Harris},
Two types of spread spectrum have been approved for use by the FCC in the unlicensed ISM band. The 802.11 WLAN committee establishing a global standard for wireless local area networks chose to allow the user to decide which one best fit his needs. This paper analyzes an approach to determining the performance tradeoffs so that a network engineer can make the decision. The approach is based on determining the maximum data flow per acre or the maximum number of networks per acre. The analyses… 

Figures from this paper

Understanding and mitigating the impact of RF interference on 802.11 networks
A channel hopping design is prototype using PRISM NICs, and it is found that it can sustain throughput at levels of RF interference well above that needed to disrupt unmodified links, and at a reasonable cost in terms of switching overheads.
Design and Analysis of DS-CDMA Transceiver Using VHDL
The pure digital BPSK modulation technique is used to implement the CDMA Transceiver and the whole system is implemented only in the digital form, so cost is reduced.
New realization methods of frequency agile filters for encrypted communications and multi-standard transceivers
New recent CMOS realization methods for agile filters suitable for encrypted communication will be presented including the concept, topologies, IC design, layouts and simulation results.
Cognitive and encrypted communications: state of the art and a new approach for frequency-agile filters
Several communication techniques are investigated in the first part of this paper: software radio, cognitive radio and encrypted communications. State of the art of research on agile and
Delay performance of radio physical layer technologies as candidates for wireless extensions to industrial networks
This paper presents a study, from a performance point of view, for the possible integration of the most popular 3G and WLAN radio technologies with fieldbus technologies.
Ultra Low Power IEEE 802.15.4/ZIGBEE Compliant Transceiver
Low power wireless communications is the most demanding request among all wireless users, and a fully integrated 2.4GHz IEEE802.15.4 compliant transceiver suitable for low power, low cost ZIGBEE applications is implemented.
Implementation of DSSS system of image using MATLAB
This paper describes spreading binary random and spreading the image as well as studying probability bit error rate of DSSS system with change of the channel and using MATLAB for this study.
An interactive VHDL simulator for IEEE 802.11 networks
A user-friendly simulator for IEEE 802.11 networks that is suitable for utilization by hardware designers, communication systems specialists and telecommunications students as well and the results, in terms of throughput and transmission delay, that are obtained by simulating a network with eight stations are reported.
Performance evaluation of FM-DCSK modulation in multipath environments
The qualitative features of the FM-DCSK system are discussed and the performance of this system in standard reference multipath channels is characterized.
Performances Evaluation of an Enhanced Modulation Technique for UWB Direct Chaotic Communication
The proposed modulation technique is named Frequency Modulation with Chip Averaging Chaotic ON-OFF Keying (FM-CACOOK) which presents an interesting solution to the well-known bit energy estimation problem in UWB-DCC communications new technology.