On Bandwidth Efficient Modulation for High-Data-Rate Wireless LAN Systems

On Bandwidth Efficient Modulation for High-Data-Rate Wireless LAN Systems

We address the problem of high-data-rate orthogonal frequency division multiplexed (OFDM) systems under restrictive bandwidth constraints. Based on recent theoretic results, multiple-input multiple-output (MIMO) configurations are best suited for this problem. In this paper, we examine several MIMO configurations suitable for high rate transmission. In all scenarios considered, perfect channel ...

Towards High Data-Rate and Bandwidth-Efficient Integrated Wireless Transceivers

Multiple Carrier Modulation Technique OFDM for High Data Rate Next Generation Wireless Systems

Orthogonal frequency division multiplexing (OFDM) has been an effective technique to combat multipath fading in wireless communications. It has been successfully used for HF radio applications and has been chosen as the standard for digital audio broadcasting and digital terrestrial TV broadcasting in Europe and high-speed wireless local areas networks. In this paper an overview of a multiple c...

Implementation Experiences of Bandwidth Guarantee on a Wireless LAN

The Rether[1] protocol was originally developed to support guaranteed Quality of Service (QoS) for shared Ethernet LANs. In view of the growing popularity of IEEE 802.11-based wireless LANs, we have modified the Rether protocol to provide QoS guarantee on these networks. In this paper, we present the design and software-only implementation of the Wireless Rether protocol for 802.11 networks, as...

Bandwidth Ecient Medium Access for an Inhouse Wireless Lan

This paper presents a new medium access method for a wireless inhouse local area network (LAN). Several existing (draft) standards for wireless communication (e.g. IEEE 802.11, HIPERLAN or Magic WAND) cannot full ll quality of service demands for typical inhouse applications (e.g. video, audio, phone and computer) or they set up the need for a central hub. We show that quality of service demand...