Flaminio Borgonovo and Michele Zorzi Abstract— The paper compares the performance of two channel-access schemes suitable for the cellular environment, which, in particular, allow the packet capture and can deal with inter-cell interference. The first scheme is the well known S-ALOHA while the second one is the Capture Division Packet Access, recently proposed. The comparison is analytically per...

The problem of stability of different multiple access schemes in computer networks is discussed. The results for the main multiple access schemes -slotted ALOHA, controlled ALOHA, CSMA, CSMA/CD, polling systems and collision resolution algorithms are surveyed. The techniques used for the stability of these systems have been emphasized.

A distributed system can be viewed as a multidimensional, not necessarily Markovian, stochastic process over a large (typically infinite) state space. Assessing stability of such multidimensional systems is notoriously difficult. In this paper we consider the standard discrete-time slotted ALOHA system with a finite number of buffered users. The stability region for t1us system is known only fo...

Recently, so called annihilating filer-based low rank Hankel matrix (ALOHA) approach was proposed as a powerful image inpainting method. Based on the observation that smoothness or textures within an image patch corresponds to sparse spectral components in the frequency domain, ALOHA exploits the existence of annihilating filters and the associated rank-deficient Hankel matrices in the image do...

Multi-channel Slotted ALOHA is currently used primarily in satellite-based networks for transaction processing (e.g., credit card payments at cash registers). For these applications, maximization of attainable throughput while adhering to a maximum-delay constraint with a required probability reflects both the user’s requirements, the network owner’s desires, and the non-deterministic nature of...

We consider the problem of stability of slotted ALOHA for a system consisting of N users communicating with a common receiver, which employs spatial diversity to receive multiple transmissions simultaneously. We introduce a general packet reception model to incorporate multiple packet receptions since the collision channel model is no longer valid in such a scenario. We characterize the stabili...

This research investigates cross-layer design in multi-hop wireless networks with random access. Due to the complexity of the problem, we study cross-layer design with a simple slotted ALOHA medium access control (MAC) protocol without considering any network dynamics. Firstly, we study the optimal joint configuration of routing and MAC parameters in slotted ALOHA based wireless networks under ...

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Citation: van den Engh GJ, Doggett JK, Thompson AW, Doblin MA, Gimpel CNG and Karl DM (2017) Dynamics of Prochlorococcus and Synechococcus at Station ALOHA Revealed through Flow Cytometry and High-Resolution Vertical Sampling. Front. Mar. Sci. 4:359. doi: 10.3389/fmars.2017.00359 Dynamics of Prochlorococcus and Synechococcus at Station ALOHA Revealed through Flow Cytometry and High-Resolution V...

The speed of a bus network is often specified by the Abstract parameter a, which denotes the end-to-end propagation delay normalized with respect to the We study the performance of the slotted ALOIH A average packet transmission time. With current multiple access protocol in a high speed bidirectional technology and cost trends, typical values of a in most passive bus network, where transmissio...