TY - GEN
T1 - CFDAMA-IS
T2 - 9th International EAI Conference on Broadband Communications, Networks, and Systems, Broadnets 2018
AU - Gorma, Wael
AU - Mitchell, Paul
AU - Zakharov, Yuriy
N1 - Funding Information:
The work of P. Mitchell and Y. Zakharov is partly supported by the UK Engineering and Physical Sciences Research Council (EPSRC) through the Grants EP/P017975/1 and EP/R003297/1.
Publisher Copyright:
© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2019.
PY - 2019
Y1 - 2019
N2 - This paper is concerned with coordinating underwater transmissions of acoustic sensor nodes. The use of acoustic waves to communicate underwater poses challenges to the functionality of Medium Access Control protocols. Long propagation delay and limited channel bandwidth are some of these challenges, which place severe constraints on the trade-off between end-to-end delay and achievable channel utilisation. The Combined Free and Demand Assignment Multiple Access (CFDAMA) protocol is known to significantly enhance the delay/utilisation performance. However, CFDAMA will suffer from long round trip delays and inefficient utilisation of its frames if it is implemented in medium and deep water. The major contribution of this paper is a new approach, namely CFDAMA with Intermediate Scheduler (CFDAMA-IS), to efficiently use CFDAMA in underwater environments. The paper compares these two protocols in typical underwater scenarios. It is shown that the proposed approach significantly reduces mean end-to-end delay and enhances channel utilisation.
AB - This paper is concerned with coordinating underwater transmissions of acoustic sensor nodes. The use of acoustic waves to communicate underwater poses challenges to the functionality of Medium Access Control protocols. Long propagation delay and limited channel bandwidth are some of these challenges, which place severe constraints on the trade-off between end-to-end delay and achievable channel utilisation. The Combined Free and Demand Assignment Multiple Access (CFDAMA) protocol is known to significantly enhance the delay/utilisation performance. However, CFDAMA will suffer from long round trip delays and inefficient utilisation of its frames if it is implemented in medium and deep water. The major contribution of this paper is a new approach, namely CFDAMA with Intermediate Scheduler (CFDAMA-IS), to efficiently use CFDAMA in underwater environments. The paper compares these two protocols in typical underwater scenarios. It is shown that the proposed approach significantly reduces mean end-to-end delay and enhances channel utilisation.
KW - Medium access control
KW - Underwater acoustic networks
UR - http://www.scopus.com/inward/record.url?scp=85059737416&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-05195-2_19
DO - 10.1007/978-3-030-05195-2_19
M3 - Conference contribution
AN - SCOPUS:85059737416
SN - 9783030051945
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
SP - 191
EP - 200
BT - Broadband Communications, Networks, and Systems - 9th International EAI Conference, Broadnets 2018, Proceedings
A2 - Althunibat, Saud
A2 - Sucasas, Victor
A2 - Mantas, Georgios
PB - Springer Nature Link
Y2 - 19 September 2018 through 20 September 2018
ER -