Publication
CSMA/CA in Time and Frequency Domains
Related publications (35)
A Multipurpose Testbed for Full-Duplex Wireless Communications
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Unlike in the traditional half-duplex (HD) mode of transmission over a wireless link, in the full-duplex (FD) mode both terminals receive and transmit on the same frequency band, simultaneously. Hence, FD gives us up to twice the spectral efficiency of HD, ...
2013Bringing Stability to Wireless Mesh Networks
Wireless mesh networks were designed as a mean to rapidly deliver large-scale communication capabilities without the support of any prior infrastructure. Among the different properties of mesh networks, the self-organizing feature is particularly interesti ...
EPFL2011Cross-Layer Based Analysis of Multi-Hop Wireless Networks
In this work, we revisit classical packet radio networks with a modern treatment of physical-layer (PHY) procedures, medium-access (MAC) and geographic channel-driven routing protocols. Our network model assumes that nodes are randomly distributed on the p ...
2010Neighbor discovery with reception status feedback to transmitters
Neighbor discovery is essential for the process of self-organization of a wireless network, where almost all routing and medium access protocols need knowledge of one-hop neighbors. In this paper we study the problem of neighbor discovery in a static and s ...
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010Self-Synchronizing Properties of CSMA Wireless Multi-hop Networks
Patrick Thiran, Olivier Dousse, Kuang Xu
We show that CSMA is able to spontaneously synchronize transmissions in a wireless network with constant-size packets, and that this property can be used to devise efficient synchronized CSMA scheduling mechanisms without message passing. Using tools from ...
2010Cooperative coding on orthogonal information networks
The focus of this thesis is on communication over cooperative information networks. In the first half of the thesis, we consider lossy source coding problems where a relay assists in the communication of a source stream between two terminals. The following ...
EPFL2009On the Fairness of Large CSMA Networks
Patrick Thiran, Olivier Dousse, Mathilde Durvy
We characterize the fairness of decentralized medium access control protocols based on CSMA/CA, such as IEEE 802.11, in large multi-hop wireless networks. In particular, we show that the widely observed unfairness of the protocol in small network topologie ...
Institute of Electrical and Electronics Engineers2009An Analytical Model for the Contention Access Period of the Slotted IEEE 802.15.4 with Service Differentiation
Giovanni De Micheli, Nadia Khaled, Eugène David Ngangue Ndih
The IEEE 802.15.4 standard is poised to become the global standard for low data rate, low energy consumption wireless sensor networks (WSN). By assigning the same sets of contention access parameters for all data frames and nodes, the contention access per ...
2009Interference management in impulse-radio ultra-wide band networks
We consider networks of impulse-radio ultra-wide band (IR-UWB) devices. We are interested in the architecture, design, and performance evaluation of these networks in a low data-rate, self-organized, and multi-hop setting. IR-UWB is a potential physical la ...
EPFL2008An Architecture for Wireless Simulation in NS-2 Applied to Impulse-Radio Ultra-Wide Band Networks
Jean-Yves Le Boudec, Ruben Merz, Jörg Widmer
We present an architecture for implementing a wireless physical layer in a packet-based network simulator. We integrate this architecture in the popular ns-2 network simulator and use it to implement an impulse-radio ultra-wide band (IR-UWB) physical layer ...
2007