| Publisher | NextNet Wireless | ||
|---|---|---|---|
| Format | Date added | 20 Oct 2008 | |
| Topics | Modems, Mobile - Wireless Communications, Wireless LAN | ||
| Downloads | 242 | ||
A non-line of sight (NLOS) broadband wireless Internet access system has been successfully installed in one of the largest and most densely populated cities in the world. This case study discusses NextNet's Expedience OFDM-based NLOS system, commercially deployed in Mexico City since October 2002. The current deployment serves an area with a population of four million, including the city's urban core and desirable residential and commercial neighborhoods to the west and south. A total of 64 RF base stations distributed over 17 cell sites covers this area. The OFDM-based Expedience system supports frequency reuse, so both area coverage and system capacity can be expanded using only a small portion of the 2.5-2.692 GHz band spectrum.
Related white papers
Transform your Multi-Channel Customer Experience: Advantages of Customer Communications Management
Improving the way you communicate with customers effectively managing and delivering more personalized and unified customer communications, across today's diverse media channels can maximize returns. Further, companies are generating tens...
Channel Estimation for OFDM Systems in Case of Insufficient Guard Interval Length
This paper presents a novel method used to channel estimation for OFDM systems in case of insufficient guard interval length. This method suppresses additive noise and interference components by averaging...
Multisubchannel Detection Techniques for Mobile OFDM Systems
One of the critical problems of mobile OFDM systems is the loss of the subchannels' orthogonality, if the channel impulse response changes during one OFDM block. OFDM systems experience intersubchannel...
Enhance Customer Loyalty through Higher Responsiveness
The economic downturn is forcing businesses to tighten their belts and look for more efficient channels. Using the Internet as a business channel, and sometimes even the only channel, is...
Case Study: NLOS Broadband Wireless Deployment for Small Town / Rural Markets
This case study shows how a non-line of sight (NLOS) broadband wireless Internet access system successfully serves a small town/rural market. NextNet's Expedience NLOS system is deployed in six rural...
PAPR Reduction in OFDM Systems Using Constellation Shaping
Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier transmission technique, which is widely adopted in different communication applications. OFDM prevents Inter Symbol Interference (ISI) by inserting a guard interval and...
Modeling OFDM Effects in Baseband WLAN Systems
Inaccuracies in modeling the baseband portion of a Wireless LAN (WLAN) system can lead to design errors that may be difficult to detect later in the process. Correct modeling of...



