IMDEA Networks Institute Publications Repository

On the MAC for Power-Line Communications: Modeling Assumptions and Performance Tradeoffs

Vlachou, Christina and Banchs, Albert and Herzen, Julien and Thiran, Patrick (2014) On the MAC for Power-Line Communications: Modeling Assumptions and Performance Tradeoffs. In: The 22nd IEEE International Conference on Network Protocols (IEEE ICNP 2014), 21-24 October 2014, The Research Triangle, North Carolina, USA.

[img]
Preview
PDF (On the MAC for Power-Line Communications: Modeling Assumptions and Performance Tradeoffs) - Published Version
Download (459Kb) | Preview

Abstract

Power-line communications are becoming a key component in home networking. The dominant MAC protocol for high data-rate power-line communications, IEEE 1901, employs a CSMA/CA mechanism similar to the backoff process of 802.11. Existing performance evaluation studies of this protocol assume that the backoff processes of the stations are independent (the so-called decoupling assumption). However, in contrast to 802.11, 1901 stations can change their state after sensing the medium busy, which introduces strong coupling between the stations, and, as a result, makes existing analyses inaccurate. In this paper, we propose a new performance model for 1901, which does not rely on the decoupling assumption. We prove that our model admits a unique solution. We confirm the accuracy of our model using both testbed experiments and simulations, and we show that it surpasses current models based on the decoupling assumption. Furthermore, we study the tradeoff between delay and throughput existing with 1901. We show that this protocol can be configured to accommodate different throughput and jitter requirements, and give systematic guidelines for its configuration.

Item Type: Conference or Workshop Papers (Paper)
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Rebeca De Miguel
Date Deposited: 14 Oct 2014 09:37
Last Modified: 01 Dec 2014 08:02
URI: http://eprints.networks.imdea.org/id/eprint/879

Actions (login required)

View Item View Item