antennas
RSS antennasUsing Continuously Adjustable Electrical Down-Tilt (CAEDT) Antennas To Optimize Wireless Networks
White Paper This paper will address why operators need CAEDT antennas, the benefits that these antennas provide and their ability to solve wireless system problems. This paper will show how the deployment of Continuously Adjustable Electrical Down Tilt (CAEDT... [24 Feb 2004]
A Turbo-Coded Multiple-Description System for Multiple Antennas
White Paper This paper proposes a joint source-channel coding scheme for wireless communication systems with multiple transmit and receive antennas. Each description is then separately turbo coded and transmitted using multiple antennas. [12 May 2006]
Resource Management in Third Generation Mobile Communication Systems Employing Smart Antennas
White Paper This paper proposes a resource allocation and management scheme tailored to systems with smart antennas supporting heterogeneous users. Third Generation (3G) Mobile Communication systems will provide enhanced high-speed data, multimedia, and voice... [03 Jul 2008]
Capacity and Coverage Improvements of Adaptive Antennas in CDMA Networks
White Paper This document presents analysis of the effect of adaptive antennas on network capacity and coverage. The fading on the channels to each of the antennas is assumed to be completely correlated. In a real system, depending on how the antennas are... [24 Feb 2004]
3Com Wireless Antennas
This paper provides an overview of antenna technology and the antennas 3Com offers for use with its 802.11b and 802.11g wireless access points that support external antenna options. This paper discusses antenna technology as well as their optimal... [14 Jun 2005]
The Inside Scoop on Antennas: Hot to Make Your Radios Talk Further
White Paper This article discusses antennas for two way radios, and how to get the most performance from your equipment by making sure you are using the best antennas for the job. If you're in a fringe area in your car, wait to transmit until you're on the... [14 Aug 2003]
Near Electromagnetic Field of HF Transmitting Curtain Antennas
White Paper An accurate determination of the near field-strength, electric as well as magnetic, in the vicinity of high power transmitting antennas is necessary to allow administrations to access any possible radiation hazard. [14 Aug 2003]
RF Electronics for GSM / GPRS Smart Antennas
White Paper Due to the enhanced immunity to multipath fading, reduction of co-channel interference (CCI), smart antennas give the possibility to con? A smart antenna can dramatically improve the signal to interference plus noise ratio (SINR). [17 Nov 2005]
Construction and Analysis of a New Quaternionic Space-Time Code for 4 Transmit Antennas
White Paper This paper presents a novel full-rate full-diversity orthogonal space-time block code for QPSK modulation and 4 transmit antennas based on quaternionic algebra. The code does not result in constellation expansion unlike other full-rate full... [21 Mar 2006]
Microsphere: Dual-Band In-Building Coverage Antennas
White Paper Consequently, service providers are beginning to focus more resources on improving network coverage within buildings, where additional path loss and multipath effects virtually require the deployment of pico base stations or repeaters, with an... [24 Feb 2004]
Performance Gain of Smart Dual Antennas at Handsets in 3G CDMA System
White Paper In this paper, simulation results for the performance gain of smart dual antennas at handsets for the forward link in the cdma2000 system is presented. The system was modeled with the SPW of Cadence. Three types of the channel model, two levels of... [01 Mar 2004]
Smart-802.11b MAC Protocol for Use With Smart Antennas
White Paper Smart antennas enable a receiver to determine the Direction of Arrival (DOA) of multiple transmissions as well as to form nulls in some number of directions to maximize SINR (Signal to Interference and Noise Ratio) of the received signal. [06 Oct 2005]
Intellicell: A Fully Adaptive Approach to Smart Antennas
White Paper Over this same decade, an important enabling technology, “smart antennas,” has also matured. Smart antenna systems utilize multiple antennas at base stations or handsets to better pinpoint or focus radio energy and thereby improve signal quality. [01 Mar 2004]
A Game Theoretic Approach to Power Control and Receiver Design in Wireless Data Networks With Multiple Antennas
White Paper This paper uses a game-theoretic approach to study power control and receiver design in the uplink of a Direct Sequence Code Division Multiple Access (DS-CDMA) data network with multiple antennas. In particular, the focus is on the case of receive... [03 Jul 2008]
A Class of Multi-Arm Monopole Antennas for Multi-Band Wireless/Mobile Applications
White Paper This paper presents several multi-band, compact, lightweight and low-cost monopole antennas suitable for applications in the Wireless Local Area Network (WLAN) and mobile communications. These antennas are two-arm microstrip-fed antenna, two-arm... [01 Aug 2007]
