We study a finite population of mobiles communicating using the slotted ALOHA-type protocol. Our objective is the study of coordination between the mobiles in both cooperative as well as non-cooperative scenarios. Our study is based on the correlated equilibrium concept, a notion introduced by Aumann that broadens the Nash equilibrium. We study ways in which signaling can improve the performanc...

A hierarchical time division multiple access (HTDMA) medium access control (MAC) protocol is proposed for clustered mobile underwater acoustic networks. HTDMA consists of two TDMA scheduling protocols (i.e., TDMA1 and TDMA2) in order to accommodate mobile underwater nodes (UNs). TDMA1 is executed among surface stations (e.g., buoys) using terrestrial wireless communication in order to share mob...

This paper introduces a random multiple access method for satellite communications, named Network Codingbased Slotted Aloha (NCSA). The goal is to improve diversity of data bursts on a slotted-ALOHA-like channel thanks to error correcting codes and Physical-layer Network Coding (PNC). This scheme can be considered as a generalization of the Contention Resolution Diversity Slotted Aloha (CRDSA) ...

This paper analyzes and optimizes the average Age of Information (AAoI) Frame Slotted ALOHA with Reservation Data slots (FSA-RD) in a multi-access network, where multiple users transmit their randomly generated status updates to common access point framed manner. Each frame consists one reservation slot several data slots. The is further split into mini-slots. In each slot, that want update wil...

In cases where machines having bursty data are equally likely to transmit to one another, code-division multipleaccess (CDMA) ALOHA which allows for an individual “virtual channel” for each receiving station may he a better multipleaccess protocol than simple ALOHA. With the use of “receiverbased code” multiple-access protocol, it is also possible for a station to listen to the channel of the i...

We address the problem of receiver design for the uplink of a WLAN network from a stability viewpoint. We propose a cross layer approach that incorporates the users’ buffer statistics for the design of smart antennas employed by the base station/access point. In particular, we consider slotted ALOHA as the MAC protocol and we propose a linear MMSE front-end that utilizes the probability of a us...

Abstract. In this paper we propose analytic model for computing the delay of the slotted ALOHA protocol with Binary Exponential Backoff (BEB) with multiple priorities as a collision resolution algorithm in mobile information systems. If a packet which tries to reserve a channel collides times, it chooses one of the next 2 frames with equal probabilities and attempts the reservation again. We de...

We propose an analytical method for evaluating the TCP throughput performance in a wireless cellular network environment, where the slotted ALOHA protocol is adopted as a data link layer. By using our method, we show that improving throughput at the data link layer level does not necessarily lead to the TCP throughput improvement. Furthermore, we evaluate TCP throughput by considering transmiss...

In this paper we suggest a development of the channel capacity concept for a dynamic slotted ALOHA network. Our object is to find maxmin successful transmissions of an information over a dynamic communication channel. To do so, we analyze an ALOHA-type medium access control protocol performance in the presence of a jammer. The time is slotted and the system is described as a zero-sum multistage...

—Because of its simplification, slotted ALOHA is comprehensive used in the satellite and wireless communication. While slotted ALOHA is essentially unstable. Therefore various kinds of control algorithms are applied in order to keep stable throughput of the communication system. In this paper, pPersistent Control Algorithm (pPCA) of slotted ALOHA is analyzed using binomial distribution model, ...