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In cognitive radio networks, rendezvous is a fundamental operation by which two cognitive users establish a communication link on a commonly-available channel for communications. Some existing rendezvous algorithms can guarantee that…

Networking and Internet Architecture · Computer Science 2015-06-04 Lu Yu , Hai Liu , Yiu-Wing Leung , Xiaowen Chu , Zhiyong Lin

In Cognitive Radio Networks (CRNs), the secondary users (SUs) are allowed to access the licensed channels opportunistically. A fundamental and essential operation for SUs is to establish communication through choosing a common channel at…

Networking and Internet Architecture · Computer Science 2014-04-15 Haisheng Tan , Jiajun Yu , Hongyu Liang , Tiancheng Lou , Francis C. M. Lau

The multichannel rendezvous problem that asks two secondary users to rendezvous on a common available channel in a cognitive radio network (CRN) has received a lot of attention lately. Most rendezvous algorithms in the literature focused on…

Networking and Internet Architecture · Computer Science 2019-02-20 Cheng-Shang Chang , Yeh-Cheng Chang , Jang-Ping Sheu

We propose a theoretical framework for consistent channel hopping algorithms to address the multichannel rendezvous problem (MRP) in wireless networks with heterogeneous available channel sets. A channel selection function is called…

Networking and Internet Architecture · Computer Science 2026-01-27 Yiwei Liu , Yi-Chia Cheng , Cheng-Shang Chang

In this paper, we propose novel channel-hoppingbased distributed rendezvous algorithm based on grid-basedquorum techniques. The proposed algorithm increases the probability of rendezvous (RDV) within a single cycle by allowing CR nodes to…

Networking and Internet Architecture · Computer Science 2017-07-25 Esraa Al Jarrah , Haythem Bany Salameh , Ali Eyadeh

Blind rendezvous is a fundamental problem in cognitive radio networks. The problem involves a collection of agents (radios) that wish to discover each other in the blind setting where there is no shared infrastructure and they initially…

Networking and Internet Architecture · Computer Science 2014-01-29 Sixia Chen , Alexander Russell , Abhishek Samanta , Ravi Sundaram

The multi-channel blind rendezvous problem in distributed cognitive radio networks (DCRNs) refers to how users in the network can hop to the same channel at the same time slot without any prior knowledge (i.e., each user is unaware of other…

Networking and Internet Architecture · Computer Science 2022-08-24 Qinglin Liu , Zhiyong Lin , Zongheng Wei , Jianfeng Wen , Congming Yi , Hai Liu

One of the most important challenges in deploying cognitive radio networks (CRNs) is to find a common control channel (CCC) to all secondary users (SUs) that enables efficient CR communications. This challenge is attributed to the dynamic…

Networking and Internet Architecture · Computer Science 2017-07-25 Esraa Jarrah

In the literature, there are several well-known periodic channel hopping (CH) sequences that can achieve maximum rendezvous diversity in a cognitive radio network (CRN). For a CRN with $N$ channels, it is known that the period of such a CH…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-07-23 Cheng-Shang Chang , Jang-Ping Sheu , Yi-Jheng Lin

The multichannel rendezvous problem is a fundamental problem for neighbor discovery in many IoT applications. The existing works in the literature focus mostly on improving the worst-case performance, and the average-case performance is…

Networking and Internet Architecture · Computer Science 2022-11-14 Guann-Yng Jiang , Cheng-Shang Chang

In this paper, we consider the multichannel rendezvous problem in cognitive radio networks (CRNs) where the probability that two users hopping on the same channel have a successful rendezvous is a function of channel states. The channel…

Information Theory · Computer Science 2019-06-26 Cheng-Shang Chang , Duan-Shin Lee , Yu-Lun Lin , Jen-Hung Wang

The multichannel rendezvous problem (MRP) is a critical challenge for neighbor discovery in IoT applications, requiring two users to find each other by hopping among available channels over time. This paper addresses the MRP in scenarios…

Networking and Internet Architecture · Computer Science 2025-09-03 Yi-Chia Cheng , Cheng-Shang Chang

This paper addresses the challenge of efficient rendezvous in multihop cognitive radio networks, where existing channel-hopping algorithms designed for single-hop scenarios incur increased delay and coordination inefficiencies in multinode…

Networking and Internet Architecture · Computer Science 2026-05-19 Zahid Ali , Saritha Unnikrishnan , Eoghan Furey , Ian McLoughlin , Saim Ghafoor

In Cognitive Radio Networks (CRNs), secondary users (SUs) must efficiently discover each other across multiple communication channels while avoiding interference from primary users (PUs). Traditional multichannel rendezvous algorithms…

Networking and Internet Architecture · Computer Science 2025-04-28 Yung-Li Wang , Yiwei Liu , Cheng-Shang Chang

In cognitive radio networks (CRNs), establishing a communication link between a pair of secondary users (SUs) requires them to rendezvous on a common channel which is not occupied by primary users (PUs). Under time-varying PU traffic,…

Information Theory · Computer Science 2016-04-18 Yijin Zhang , Yuan-Hsun Lo , Wing Shing Wong

Asynchronous programming has gained significant popularity over the last decade: support for this programming pattern is available in many popular languages via libraries and native language implementations, typically in the form of…

Data Structures and Algorithms · Computer Science 2022-11-10 Nikita Koval , Dan Alistarh , Roman Elizarov

Two mobile agents, starting from different nodes of an $n$-node network at possibly different times, have to meet at the same node. This problem is known as rendezvous. Agents move in synchronous rounds using a deterministic algorithm. In…

Data Structures and Algorithms · Computer Science 2014-10-07 Avery Miller , Andrzej Pelc

We consider a set of transmitter-receiver pairs, or links, that share a common channel and address the problem of emptying backlogged queues at the transmitters in minimum time. The problem amounts to determining activation subsets of links…

Information Theory · Computer Science 2012-07-20 Vangelis Angelakis , Anthony Ephremides , Qing He , Di Yuan

Distributed Opportunistic Scheduling (DOS) techniques have been recently proposed to improve the throughput performance of wireless networks. With DOS, each station contends for the channel with a certain access probability. If a contention…

Networking and Internet Architecture · Computer Science 2014-12-16 Andres Garcia-Saavedra , Albert Banchs , Pablo Serrano , Joerg Widmer

Two identical anonymous mobile agents have to meet at a node of the infinite oriented grid whose nodes are unlabeled. This problem is known as rendezvous. The agents execute the same deterministic algorithm. Time is divided into rounds, and…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-07-23 Younan Gao , Andrzej Pelc
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