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Analysis of institutional authors

Piñero, GAuthorDe Diego, MAuthor

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October 31, 2024
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Multi-user interference mitigation under limited feedback requirements for WCDMA systems with base station cooperation

Publicated to: TELECOMMUNICATION SYSTEMS. 61 (3): 543-557 - 2016-01-01 61(3), DOI: 10.1007/s11235-015-0011-z

Authors:

BOTELLA MASCARELL, CARMEN; Gema Piñero; Diego Antón, María de
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Affiliations

Univ Politecn Valencia, Inst Telecommun & Multimedia Applicat iTEAM - Author
Univ Valencia, IRTIC, Grp Informat & Commun Syst - Author

Abstract

One of the techniques that has been recently identified for dealing with multi-user interference (MUI) in future communications systems is base station (BS) cooperation or joint processing. However, perfect MUI cancellation with this technique demands severe synchronization requirements, perfect and global channel state information (CSI), and an increased backhaul and signaling overhead. In this paper, we consider a more realistic layout with the aim of mitigating the MUI, where only local CSI is available at the BSs. Due to synchronization inaccuracies and errors in the channel estimation, the system becomes partially asynchronous. In the downlink of wideband code division multiple access based systems, this asynchronism stands for the loss of the orthogonality of the spreading codes allocated to users and thus, for an increase in the MUI level of the system. In this contribution, we propose a framework for mitigating the MUI which builds in three main steps: definition of a cooperation area based on the channel characteristics, statistical modeling of the average MUI power experienced by each user and a specific spreading code allocation scheme for users served with joint processing. This code allocation assigns spreading codes to users in such a way that minimum average cross-correlation between active users can be achieved. Interestingly, these steps can be performed with a limited amount of extra feedback from the user's side.
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Keywords

AssignmentBase station cooperationBase stationsCdmaChannel capacityChannel characteristicsChannel state informationCodesCodes (symbols)Communications systemsCoordinated multi pointsCoordinated multipointCoordinated multipoint,wcdma,multi-user interference mitigationCoordinationInterference suppressionMobile telecommunication systemsMulti-user interferenceMulti-user interference mitigationOrthogonality factorPower-controlStatistical modelingWcdmaWideband code division multiple access

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal TELECOMMUNICATION SYSTEMS due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2016, it was in position , thus managing to position itself as a Q2 (Segundo Cuartil), in the category Electrical and Electronic Engineering. Notably, the journal is positioned en el Cuartil Q3 for the agency WoS (JCR) in the category Telecommunications.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-06:

  • WoS: 1
  • Scopus: 1
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-06:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 3.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 3 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 2.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: http://hdl.handle.net/10251/84850
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: United States of America.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: Last Author (Diego Antón, María de).

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Awards linked to the item

C. Botella's work has been partially supported by the Spanish MINECO Grants CONSOLIDER-INGENIO 2010 CSD 2008-00010 COMONSENS and RACHEL TEC2013-47141-C4-4-R. G. Pinero and M. de Diego's work has been supported by European Union ERDF and Spanish Government through TEC2012-38142-C04 Project, and Generalitat Valenciana through PROMETEOII/2014/003 Project.
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