Introduction
The M2M Department is focused on both theoretical and experimental research in the field of Machine-to-Machine (M2M) Communications for the Internet of Things (IoT). The automated communication between autonomous devices will facilitate unprecedented new applications that will create a revolution in our daily life and in the efficiency and operation of industrial processes. However, many challenges need to be solved in the technical domain before true M2M revolution occurs.
This department conducts research at the lower layers of the protocol stack to facilitate M2M applications with particular focus on Radio Resource Management, Scheduling and Medium Access Control for M2M communications.
The experimental research activities conducted within the M2M Department lie on the capabilities of the IoTWorld Testbed of CTTC. The maintenance and continuous update and evolution of this testbed for the IoT constitute a joint research activity in collaboration with the SMARTECH Department of CTD.
Scientific PublicationsBooks & Chapters
A. Laya, J. Alonso-Zarate, L. Alonso, M. Dohler, K.Wang, Green Machine-Type Communications, Machine-to-Machine Communications, and the Internet of Things, Chapter in Green Communications: Principles, Concepts and Practice, published by John Wiley. ISBN: 978-1-118-75926-4. September 2015.
A. Laya, K.Wang, L. Alonso, J. Alonso-Zarate, J. Markendahl, Future challenges in efficiently supporting M2M in LTE standards, Machine-to-machine (M2M) communications, architecture, performance and applications, January 2015, edited by Mischa Dohler and Carles Anton-Haro, published by Woodhead Publishing.
Journals
F. Vázquez-Gallego, L. Alonso, J. Alonso-Zarate, Energy Analysis of Contention Tree-based Access Protocols in Dense Machine-to-Machine Area Networks, Journal of Sensors, Vol. 2015, No. 685164, pp. 12, April 2015.
F. Vázquez-Gallego, L. Alonso, J. Alonso-Zarate, Modeling and Analysis of Reservation Frame Slotted-ALOHA in Wireless Machine-to-Machine Area Networks for Data Collection, Sensors 2015, Vol. 15(2), pp. 3911-3931, February 2015.
A. Laya, L. Alonso, P. Chatzimisios, J. Alonso-Zarate, Reliable Machine-to-Machine Multicast Services with Multi-Radio Cooperative Retransmissions, Mobile Networks and Applications, Vol. 20, No. 6, pp. 734-744, February 2015.
V. Karagiannis, P. Chatzimisios, F. Vázquez-Gallego, J. Alonso-Zarate, A Survey on Application Layer Protocols for the Internet of Things, Transaction on IoT and Cloud Computing, Vol. 1, No. 1, January 2015.
Conferences
A. Laya, L. Alonso, J. Alonso-Zarate, Efficient Contention Resolution in Highly Dense LTE Networks for Machine Type Communications, in Proceedings of Global Communications Conference, Exhibition & Industry Forum (IEEE GLOBECOM 2015), 6-7 December 2015, San Diego, California (USA).
R. Palacios-Trujillo, J. Alonso-Zarate, F. Granelli, F. H. P. Fitzek, N. L. S. da Fonseca, Network Coding and Duty Cycling in IEEE 802.11 Wireless Networks with Bidirectional Transmissions and Sleeping Periods, in Proceedings of Global Communications Conference, Exhibition & Industry Forum (IEEE GLOBECOM 2015), 6-7 December 2015, San Diego, California (USA).
A. Hernández, F. Vázquez-Gallego, L. Alonso, J. Alonso-Zarate, Performance Evaluation of Frame Slotted ALOHA with Intra-Frame and Inter-Frame Successive Interference Cancellation, in Proceedings of Global Communications Conference, Exhibition & Industry Forum (IEEE GLOBECOM 2015), 6-7 December 2015, San Diego, California (USA).
R. Muñoz, R. Vilalta, C. Verikoukis, J. Mangues, J. Alonso-Zarate, A. Georgiadis, M. Payaro, R. Casellas, R. Martínez, J. Serra, D. Pubill, J. Núñez, J. Baranda, F. Vázquez-Gallego, A. I. Pérez-Neira, The CTTC 5G end-to-end experimental platform integrating IoT, SDN, and distributed cloud, in Proceedings of Wireless World Research Forum Meeting 35 (WWRF), 14-16 October 2015, Copenhagen (Denmark).
M. Condoluci, L. Militano, A. Orsino, J. Alonso-Zarate, G. Araniti, LTE-Direct vs. WiFi-Direct for Machine-Type Communications over LTE-A Systems, in Proceeding of IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication ( PIMRC 2015), 30-2 September 2015.
A. Laya, L. Alonso, J. Alonso-Zarate, Contention Resolution Queues for Massive Machine Type Communications in LTE, in Proceeding of IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication ( PIMRC 2015), 30-2 September 2015.
P. V. Mekikis, E. Kartsakli, A. Lalos, A. Antonopoulos, L. Alonso, C. Verikoukis, Connectivity of Large-Scale WSNs in Fading Environments under Different Routing Mechanisms, in Proceedings of IEEE International Conference on Communications (ICC2015), 8-12 June 2015, London (UK).
A. Laya, L. Alonso, P. Chatzimisios, J. Alonso-Zarate, Massive Access in the Random Access Channel of LTE for M2M Communications: an Energy Perspective, in Proceedings of IEEE International Conference on Communications (ICC2015), 8-12 June 2015, London (UK).
R. Palacios, G. Mengistie Mekonnen, J. Alonso-Zarate, D. Kliazovich, F. Granelli, Analysis of an Energy-Efficient MAC Protocol Based on Polling for IEEE 802.11 WLANs, in Proceedings of IEEE International Conference on Communications (ICC2015), 8-12 June 2015, London (UK).
G. Interdonato, S. Pfletschinger, F. Vázquez-Gallego, J. Alonso-Zarate, G. Araniti, Intra-Slot Interference Cancellation for Collision Resolution in Irregular Repetition Slotted ALOHA, in Proceeding of IEEE International Conference on Communications (ICC2015), 8-12 June 2015, London (UK).
F. Vázquez-Gallego, J. Alonso-Zarate, L. Alonso, Reservation Dynamic Frame Slotted-ALOHA for Wireless M2M Networks with Energy Harvesting, in Proceedings of International Conference on Communiactions (ICC2015), 8-12 June 2015, London (UK).
R. Palacios, F. Franch, F. Vázquez-Gallego, J. Alonso-Zarate, F. Granelli, Experimental Evaluation of Reverse Direction Transmissions in WLAN Using the WARP Platform, in Proceedings of International Conference on Communiactions (ICC2015), 8-12 June 2015, London (UK).
J. Zhao, K. Keong Chai, Y. Chen, J. Schormans, J. Alonso-Zarate, Joint Mode Selection and Radio Resource Allocation for D2D Communications Based on Dynamic Coalition Formation Game, in Proceedings of European Wireless 2015, 20-22 May 2015, Budapest (Hungary).