Journal ArticleDOI
WaveLAN®-II: A high-performance wireless LAN for the unlicensed band
Ad Kamerman,Leo Monteban +1 more
TLDR
Various aspects of the system design of WaveLAN-II and characteristics of its antenna, radio-frequency (RF) front-end, digital signal processor (DSP) transceiver chip, and medium access controller (MAC) chip are discussed.Abstract:
In July 1997 the Institute of Electrical and Electronics Engineers (IEEE) completed standard 802.11 for wireless local area networks (LANs). WaveLAN®-II, to be released early in 1998, offers compatibility with the IEEE 802.11 standard for operation in the 2.4-GHz band. It is the successor to WaveLAN-I, which has been in the market since 1991. As a next-generation wireless LAN product, WaveLAN-II has many enhancements to improve performance in various areas. An IEEE 802.11 direct sequence spread spectrum (DSSS) product, WaveLAN-II supports the basic bit rates of 1 and 2 Mb/s, but it can also provide enhanced bit rates as high as 10 Mb/s. This paper discusses various aspects of the system design of WaveLAN-II and characteristics of its antenna, radio-frequency (RF) front-end, digital signal processor (DSP) transceiver chip, and medium access controller (MAC) chip.read more
Citations
More filters
Proceedings ArticleDOI
Routing in multi-radio, multi-hop wireless mesh networks
TL;DR: A new metric for routing in multi-radio, multi-hop wireless networks with stationary nodes called Weighted Cumulative ETT (WCETT) significantly outperforms previously-proposed routing metrics by making judicious use of the second radio.
Proceedings ArticleDOI
A rate-adaptive MAC protocol for multi-Hop wireless networks
TL;DR: This paper presents a rate adaptive MAC protocol called the Receiver-Based AutoRate (RBAR) protocol, based on the RTS/CTS mechanism, which can be incorporated into many medium access control protocols including the widely popular IEEE 802.11 protocol.
Proceedings ArticleDOI
Opportunistic media access for multirate ad hoc networks
TL;DR: This paper describes mechanisms to implement OAR on top of any existing auto-rate adaptation scheme in a nearly IEEE 802.11 compliant manner, and analytically study OAR to characterize the gains in throughput as a function of the channel conditions.
Proceedings ArticleDOI
IEEE 802.11 rate adaptation: a practical approach
TL;DR: An Adaptive ARF (AARF) algorithm for low latency systems that improves upon ARF to provide both short-term and long-term adaptation and a new rate adaptation algorithm designed for high latency Systems that has been implemented and evaluated on an AR5212-based device.
Journal ArticleDOI
CoopMAC: A Cooperative MAC for Wireless LANs
TL;DR: It is demonstrated that cooperation among stations in a wireless LAN (WLAN) can achieve both higher throughput and lower interference, and a reduction in the signal-to-interference ratio in a dense deployment of 802.11 access points is demonstrated.
References
More filters
Journal ArticleDOI
Development of WaveLAN®, an ISM band wireless LAN
TL;DR: In this article, the design philosophy in the development of NCR's WaveLAN and the technical tradeoffs are discussed, as well as the design and technical trade-offs of WaveLAN.
Journal ArticleDOI
Wireless LANs and mobile networking: standards and future directions
TL;DR: The article considers the network layer by discussing extensions that are being made to the widely used Internet protocol (IP) to deal with mobility (wired or wireless) and speculating on future directions for wireless LAN systems.
Journal ArticleDOI
Trends in local wireless networks
TL;DR: The present paper provides an overview of the past and present of the wireless LAN industry, as well as a perspective of the future directions that encompass a vision for a ubiquitous local wireless computing environment that leads to a fusion of communications and computation.
Journal ArticleDOI
Performance of asynchronous data transfer methods of IEEE 802.11 MAC protocol
H.S. Chhaya,S. Gupta +1 more
TL;DR: A performance evaluation of the asynchronous data transfer protocols that are a part of the proposed IEEE 802.11 WLAN MAC protocols is conducted, taking into account the decentralized nature of communication between stations, the possibility of "capture", and presence of "hidden" stations.
Journal ArticleDOI
Barker code position modulation for high-rate communication in the ISM bands
TL;DR: A new modulation and transmission scheme known as Barker code position modulation (BCPM) is described, which can be used either in frequency bands in which spectral spreading is obligatory or in cases in which it might be desirable due to other considerations.