| Publisher | University of Maryland | ||
|---|---|---|---|
| Format | 93.3KB PDF | Date added | 26 Sep 2006 |
| Topics | Wireless LAN, Mobile - Wireless Communications | ||
| Downloads | 156 | ||
Most dynamic spectrum access research centers on determining the set of frequencies being used by spectrum license holders, taking its converse, and from what remains selecting the optimal subset of spectrum. This, however, assumes unlicensed transmissions have a square power spectrum By shaping the unlicensed power spectra, it can do much more. This paper investigates applications of spectrum shaping, and how they can be implemented using OFDM and DSSS. The first application involves creating notched power spectra that can take advantage of noncontiguous spectrum segments, increasing the signal bandwidth. The second is to create spectra inversely shaped to the current interference environment, allowing to take advantage of gaps in the noise floor.
Did you find this white paper useful?
32 out of 50 users found this white paper useful
Related white papers
Intel Case Study: Strix Systems Access/One Network
The difference between a Strix Systems Access/One Network and a typical enterprise network is simple: wires or, no wires. Going where only wired solutions have gone before, Strix Systems designed...
Cisco Wireless Solution Helps Florida Hospital Enhance Patient Care
Florida Hospital administrators wanted to link more than 90 facilities within the vast Florida Hospital system to increase the patient care capability of caregivers, make network management faster and easier,...
Colubris Networks Case Study: Connexion by Boeing
Connexion by Boeing is globally recognized as the industry's first and foremost provider of secure, high-speed in-flight Internet access for commercial and executive aircraft operators. In creating the Connexion by...
SyncScan: Practical Fast Handoff for 802.11 Infrastructure Networks
This paper describes SyncScan, a low-cost technique for continuously tracking nearby base stations by synchronizing short listening periods at the client with periodic transmissions from each base station. The paper...
Sales Compensation & Performance Management 2009 Survey Results and Analysis
Based on 1000+ companies, the CSO Insights' 2009 Sales Compensation & Performance Management Report provides summaries of what strategies and tactics companies are employing. The findings offer insights and the...
Dell-Customized Mobility Solutions
The marketplace is overflowing with a multitude of mobility options for businesses of all types and sizes. From notebooks, netbooks, and handheld computers to WiFi, smartphones, and mobile broadband, there...
Ad-Hoc IP Networks Over Bluetooth
In the emerging mobile Internet, Bluetooth will serve as the link between the personal mobile devices and the wide area 3G access networks, i.e. offering an Internet access to the...
