Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
A DTN System for Nanosatellite-based Sensor Networks using a New ALOHA Multiple Access with Gateway Priority
Year:2013
Research Areas
  • Telecommunications industry
Information
Abstract
This paper presents and evaluates a new communications architecture to provide services to terrestrial sensor networks using a space delay-tolerant networking (DTN)?based solution. We propose a new multiple access mechanism based on extended unslotted ALOHA that takes into account the priority of gateway traffic, which we call ALOHA multiple access with gateway priority (ALOHAGP). We assume a finite sensor population model and a saturated traffic condition where every sensor always has frames to transmit. The performance was evaluated in terms of effective throughput, delay and system fairness. In addition, a DTN convergence layer (ALOHAGP-CL) has been defined as a subset of the standard TCP-CL (Transmission Control Protocol-Convergence Layer). Through simulations, this paper reveals that ALOHAGP/CL adequately supports the proposed DTN scenario, mainly when reactive fragmentation is used.
International
Si
JCR
No
Title
Smart CR
ISBN
2234-4624
Impact factor JCR
Impact info
Volume
Journal number
From page
383
To page
396
Month
OCTUBRE
Ranking
Participants
  • Autor: Angel Fernandez Del Campo (UPM)
  • Autor: Carlos Miguel Nieto (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Ingeniería de Redes y Servicios Avanzados de Telecomunicación
  • Departamento: Ingeniería de Sistemas Telemáticos
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