March 2014 Edition – Vol. 6 no. 3

SIGNAL is the main monthly information medium of the Microsystems Strategic Alliance of Québec (ReSMiQ). This newsletter aims to be an active link between the members of ReSMiQ and all individuals who have an interest in research and innovation in microsystems. We commit ourselves to promote in it our members’ research and increase ReSMiQ’s visibility.

ReSMiQ is a group of researchers in an interuniversity research center that can count on the support of the Fonds de recherche du Québec – Nature et technologies (FRQNT) and ten (10) Quebec universities involved in microsystems research.

In this issue we present you the news for the month of March 2014. New format for SIGNAL – As more and more web user are browsing on mobile platforms such as digital tablets and smart phones, we decided to renew the format of our monthly newsletter SIGNAL for a more user-friendly reading. Do not hesitate to send us any comments that could help us improve the quality.

ReSMiQ annual symposium & scientific poster competition – Our next annual symposium will be held as part of the 82nd ACFAS conference to be held in Montréal at the Concordia university, on May 12, 2014. The annual scientific poster competition for graduate students affiliated to ReSMiQ will be one of the highlight of the program. The call for proposal generated a large number of submission. The projects that were selected will be presented during our symposium and a panel of judges will evaluate each contributions. Three awards will be given to the best contributions.


Exposure – Dr. Sawan from Polytechnique offered a keynote address at the LAAS conference which was held in Beirut on March 26 – 28, 2014.
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Achievement – Dr. Gosselin from Université Laval received  an ENGAGE PLUS grant form NSERC with Doric Lenses Optogeneticas as industrial partner. – Dr. Pratte from Université de Sherbrooke received a John-R. Evans leaders fund grant from the Canada foundation for innovation.

Involvment – Dr. Ajib from Université du Québec à Montréal is the general chair of the 12th ACM international symposium on mobility management and wireless access – MobiWac2014, to be held in Montréal on September 21 – 26, 2014.

jir2014 NEWCAS2014


Financial support for undergraduate students
To stimulate integration of new students within the affiliated laboratories of ReSMiQ holds annually a financial support competition for undergraduate full time students.

Characteristics – Duration of three (3) months. – Starting May 1, 2014. – 2000$ for the whole duration.

Application information Applications must be received at ReSMiQ’s administrative office on April 7, 2014 at the latest. Applications must be submitted in PDF format via the online submission page.
Details about aligibility and application

RID2014 – Project demonstration competition MORE THAN 5000$ IN AWARDS!

This competition is dedicated to the presentation of undergraduate and graduate students projects where they will demonstrate their scientific and technical expertise during a competition where each presenter will display their project via a technical demonstration, a live experiment. Prices will be awarded to the best presentations. It is open to all full time students enrolled in a university in the province of Québec.

Selection Criteria The project must be scientifically sound and technically fully functional. Each project should be complete to demonstrate the output results without the requirement of special set-up or test equipment. The project must propose a novel technique or reveal a significant advantage over the conventional methods.

Important Dates
Deadline for abstract submission : May 1, 2014
Notification of accceptance : June  1, 2014
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Intensive course
hashemi-274x300Title: Reconfigurable Radio-Frequency Transceivers
Speaker: Hossein Hashemi, University of Southern California
Location: École Polytechnique de Montréal, Pavillon lassonde, M-2103
Date and time: Thursday May 08, 2014 from 09:00 AM to 12:00 PM
Abstract and Bio

Posted in Uncategorized


Call for contributions

31st Canadian Conference on Electrical & Computer engineering (CCECE),
from May 13 to 16, 2018, Québec, Canada.
Submission deadline : January 18, 2018.
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16th IEEE International NEWCAS Conference (NEWCAS),
from June 24 to 27, 2018, Montréal, Canada.
Submission deadline : February 17, 2018.
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61st IEEE International Midwest Symposium on Circuits and Systems (MWSCAS),
from August 5 to 8, 2018, Windsor, ON, Canada.
Submission deadline : March 18, 2018.
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IEEE Biomedical Circuits and Systems Conference (BioCAS2018),
from October 17 to 19, 2018, Cleveland, U.S.A.
Submission deadline : March 18, 2018.
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Call for participation

2017 International Conference on Electronics, Circuits and Systems (ICECS),
from December 5 to 8, 2017, Batumi, Georgia.

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IEEE International Conference on Microelectronics (ICM 2017),
from December 10 to 13, 2017, Beirut, Lebanon.

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2018 International Symposium on Circuits and Systems (ISCAS),
from May 27 to 30, 2018, Florence, Italy.
Tous les détails


Prof. Wessam Ajib
Université du Québec à Montréal
Membre of ReSMiQ since 2009

Ajib_uqamWessam Ajib received the Ph.D. degree in computer sciences and networks from the École Nationale Supérieure des Telecommunications (ENST), Paris, France. He was a Postdoctoral Fellow with the Department of Electrical Engineering, École Polytechnique de Montreal, QC, Canada. He was an architect and a Radio Network designer with Nortel Networks, Ottawa, ON, Canada, where he conducted many projects and introduced different innovative solutions for the third generation of wireless cellular networks. He is currently a full professor in the Department of Computer Science of the University of Quebec in Montreal. He is the author or coauthor of many journal and conference papers.

More information

Below is a selection of publications in recent years followed by a representative paper of his work.

M. Chraiti, W. Ajib, J.-F. Frigon, “Optimal Long-Term Power Adaption for Cooperative DF Relaying”, IEEE Wireless Communications Letters. 2014.

W. Jaafar, W. Ajib, D. Haccoun, “On the Performance of Multi-hop Wireless Relay Networks”, Wireless Communications and Mobile Computing, Volume 14, Issue 1, pp. 145-160, January 2014.

H. Hakim, H. Boujemaa, W. Ajib, “On Relaying Schemes using Fixed Transmit Power in Underlay Cognitive Radio Networks”, IEEE Transactions on Communications, Volume 61, No. 12, pp. 4836-4846, December 2013.

M. Chraiti, H. Hakim, W. Ajib, H. Boujemaa, “Spectrum Sharing Techniques for Broadcast Cognitive Radio Networks”, IEEE Transactions on Wireless Communications, Volume 12, No. 11, pp.5880-5888, November 2013.

E. Driouch, W. Ajib, “Downlink Scheduling and Resource Allocation for Cognitive Radio MIMO Networks”, IEEE Transactions on Vehicular Technology, Volume 62, No. 8, pp. 3875-3885, October 2013. (See “research contribution” section)

H. Hakim, H. Boujemaa, W. Ajib, “Single Relay Selection Schemes for Broadcast Networks”, IEEE Transactions on Wireless Communications, Volume 12, No. 6, pp. 2646-2657, June 2013.


Downlink Scheduling and Resource Allocation for Cognitive Radio MIMO Networks

E. Driouch, W. Ajib
IEEE Transactions on Vehicular Technology, October 2013

Cognitive radio is regarded as the ideal candidate for enhancing the efficiency of spectrum usage for next-generation wireless systems. In fact, this emerging technology allows unlicensed cognitive users to transmit over frequency bands that are initially owned by license holders through the use of dynamic spectrum sharing. In this paper, we propose a novel algorithm that efficiently solves the problem of spectrum sharing and user scheduling in a cognitive downlink multi-input-multi-output system (MIMO) (Fig. 1). We study the scenario where primary receivers do not allow any interference from a multiantenna cognitive base station, which serves cognitive users. Using graph theory, we model, formulate, and develop an algorithm that finds near-optimal spectrum sharing with the objective of approaching the maximum achievable secondary sum rate. Since the formulated graph-coloring problem is shown to be NP-hard, we design a low-complexity greedy algorithm. Following, we add the well-known proportional fairness to the proposed algorithm to ensure time-based fairness and to efficiently resolve the fairness/sum rate tradeoff. The problem is also formulated as a binary integer programming problem to find the optimal coloring solution. Computer simulations show that the proposed algorithm is able to achieve near-optimal performances with low computational complexity.
Fig. 1. System model.  M-antenna BS serves K SUs in two FBs. Band 1 is used by one primary transmitter (PT) and two primary receivers (PR). Band 2 is used by one PT and one PR.  It is assumed that the secondary BS has the ability to transmit over all N FBs used by primary links.