NDLI: Empirical gains achievable with low altitude remote radio heads in wireless urban links

Content Provider	IEEE Xplore Digital Library
Author	Ahumada, L. Feick, R. Valenzuela, R. Gallardo, M. Derpich, M. Carrasco, H.
Copyright Year	2012
Description	Author affiliation: Bell Labs, Alcatel-Lucent, USA (Valenzuela, R.) \|\| Esc. de Informática y Telecomunicaciones, Universidad Diego Portales, Santiago, Chile (Ahumada, L.) \|\| Dep. Electrónica, Universidad Técnica Federico Santa María, Valparaíso, Chile (Feick, R.; Gallardo, M.; Derpich, M.; Carrasco, H.)
Abstract	We present empirical results on the achievable gains stemming from the use of wireless remote radio heads (RRH) in a typical urban environment. Our work is based on simultaneous path-loss measurements of the base station and RRH links to outdoor street level users. We statistically characterize the increase in received power, when a RRH is added to improve the coverage achieved by a base station. We consider diverse expected coverage areas for the mobile terminal, evaluating the effect of RRH position with respect to the intended users. We also compare the power gains that would be obtained in practice from combining the signals from the base with those of the RRH, using schemes such as selection combining and maximum ratio combining. We conclude that under practical conditions, the benefits of using RRHs will depend very strongly on the existence of line-of-sight links between the RRH and the intended users. For RRHs placed at low heights, below the clutter, only users in a street-canyon position with respect to the RRH will obtain a significant benefit. Our data also shows that the gains in signal-to-noise ratio achieved when using maximum ratio combining are only marginally better than those of the much simpler selection combining.
Starting Page	6815
Ending Page	6819
File Size	751740
Page Count	5
File Format	PDF
ISBN	9781457720529
ISSN	15503607
e-ISBN	9781457720536
e-ISBN	9781457720512
DOI	10.1109/ICC.2012.6364753
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-10
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Gain Diversity reception Mobile communication Urban areas Base stations Relays
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Cooperative versus non-cooperative communications

Diversity reception at the base station of a GSM/DCS1800 system

Optimal combining for RAKE reception in mobile cellular CDMA forward links

Coded cooperative diversity with convolutional codes over Nakagami-m wireless fading channels

A Coverage Analysis of Amplify-and-Forward Relaying Schemes in Outdoor Urban Environment

Performance results with antenna diversity in urban environment for a DS-CDMA mobile radio system

Space diversity analysis for low elevation links in urban areas

A Performance Study of Multi-Node System in Wireless Network

Finger Replacement Schemes for RAKE Reception in the Soft Handover Region with Multiple Base Stations

Empirical gains achievable with low altitude remote radio heads in wireless urban links

Similar Documents

Cooperative versus non-cooperative communications

Diversity reception at the base station of a GSM/DCS1800 system

Optimal combining for RAKE reception in mobile cellular CDMA forward links

Coded cooperative diversity with convolutional codes over Nakagami-m wireless fading channels

A Coverage Analysis of Amplify-and-Forward Relaying Schemes in Outdoor Urban Environment

Performance results with antenna diversity in urban environment for a DS-CDMA mobile radio system

Space diversity analysis for low elevation links in urban areas

A Performance Study of Multi-Node System in Wireless Network

Finger Replacement Schemes for RAKE Reception in the Soft Handover Region with Multiple Base Stations

Empirical gains achievable with low altitude remote radio heads in wireless urban links