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Indoor Wireless Communications: Capacity and Coexistence on the Unlicensed Bands
| Venue: | Intel Technology Journal |
| Citations: | 1 - 0 self |
BibTeX
@ARTICLE{Rusch_indoorwireless,
author = {Leslie Ann Rusch},
title = {Indoor Wireless Communications: Capacity and Coexistence on the Unlicensed Bands},
journal = {Intel Technology Journal},
year = {},
pages = {200--1}
}
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Abstract
Ubiquitous computing requires anytime, anywhere connectivity, leading to a spectrum crowded with users seeking reliable, high bit-rate communications in potentially dense geographies, especially in indoor environments. The amount of frequency spectrum available to Wireless Local Area Networks (WLAN) and Wireless Personal Area Networks (WPAN) is limited, with no relief in sight. As Wireless LANs and PANs rise in popularity, they will be required to carry increasingly larger amounts of data for multimedia and other services, while at the same time, overcrowding of these bands can lead to service degradation and undermine the goals of ubiquitous computing. In this paper, we discuss a proposed strategy to deal with two of the challenges in the use of unlicensed frequency bands: 1) coexisting with other users, and 2) extracting the greatest capacity from systems that are both power and band limited. We first address the coexistence problem qualitatively, explaining the interference scenarios and how the proposed solution works well in this environment. We then address the capacity issue quantitatively with a throughput analysis for the proposed system and the up-and-coming IEEE 802.11a standard for WLANs. We will show how the proposed system offers similar performance to the 802.11a systems at high Signal-to-Noise (SNR), and show how it offers many added advantages, including robustness, to narrow- and wide-band interference.
Keyphrases
unlicensed band indoor wireless communication wireless personal area network indoor environment wide-band interference unlicensed frequency band similar performance wireless local area network capacity issue coexistence problem up-and-coming ieee high signal-to-noise high bit-rate communication frequency spectrum throughput analysis dense geography interference scenario wireless lan
