TU Berlin

Main document

Literature Database Entry


Atefeh Rezaei, Paeiz Azmi and Nader Mokari, "Robust resource allocation in Cloud-RAN network based on COMP technology," Proceedings of 8th International Symposium on Telecommunications (IST 2016), Tehran, Iran, September 2016, pp. 293–298.


In this paper, we consider a joint transmission scheme of coordinated multi-point (COMP) technology in communication networks. In this kind of networks, data can be transmited from multiple points to a user in a time-frequency resource, simultaneously. Because of high signaling and successive delays, channel state information at the transmitter (CSIT) may be incorrect. In this regard, we devise the robust beamformers that minimizes the total transmit power while the quality of service (QoS) constraints are satisfied and uncertainty of CSIT is taken into account. For CSIT uncertainty model, two schemes are proposed: 1) we assume that CSIT imperfection is a Euclidean ball-shaped uncertainty set with specified considered error bound. This problem is a quadratically constrained quadratic problem (QCQP) that can be transformed into a semidefinite program (SDP). 2) we choose stochastic robustness method that reformulates the purposed power minimization in a chance constrained programming (CCP) form. In this kind of problems, some methods are employed to find closed form of constraints. In this article, the closed-form of SINR constraint is obtained with Bernstein approximation. Finally, it is converted to a SDP problem. Simulation results show that when CSIT is imperfect, more transmit power is needed to guarantee the target of the constraint but by Bernstein approximation this increasing cost is slow and lower than the other existing methods.

Quick access

Original Version DOI (at publishers web site)
BibTeX BibTeX


Atefeh Rezaei
Paeiz Azmi
Nader Mokari

BibTeX reference

    author = {Rezaei, Atefeh and Azmi, Paeiz and Mokari, Nader},
    doi = {10.1109/istel.2016.7881828},
    title = {{Robust resource allocation in Cloud-RAN network based on COMP technology}},
    pages = {293--298},
    publisher = {IEEE},
    address = {Tehran, Iran},
    booktitle = {8th International Symposium on Telecommunications (IST 2016)},
    month = {9},
    year = {2016},

Copyright notice

Links to final or draft versions of papers are presented here to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted or distributed for commercial purposes without the explicit permission of the copyright holder.

The following applies to all papers listed above that have IEEE copyrights: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

The following applies to all papers listed above that are in submission to IEEE conference/workshop proceedings or journals: This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible.

The following applies to all papers listed above that have ACM copyrights: ACM COPYRIGHT NOTICE. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from Publications Dept., ACM, Inc., fax +1 (212) 869-0481, or permissions@acm.org.

The following applies to all SpringerLink papers listed above that have Springer Science+Business Media copyrights: The original publication is available at www.springerlink.com.

This page was automatically generated using BibDB and bib2web.


Featured Paper