An Efficient Cache Strategy in Information Centric Networking Vehicle-to-Vehicle Scenario

Zhao, Weicheng; Qin, Yajuan; Gao, Deyun; Foh, Chuan Heng; Chao, Han‐Chieh

doi:10.1109/access.2017.2714191

Cited by 72 publications

(41 citation statements)

References 24 publications

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“…As the popularity of an IS content item may fade with time, cache update is employed to maintain the hit rate. To this end, existing works have devised popularity-based content caching and update schemes for vehicles, where the vehicle-cached contents are dynamically replaced based on the prediction of popularity variations [20]. However, cache updating also consumes transmission resources, which is seldom analyzed in the existing literature.…”

Section: A Infotainment Servicementioning

confidence: 99%

Hierarchical Soft Slicing to Meet Multi-Dimensional QoS Demand in Cache-Enabled Vehicular Networks

Zhang¹,

Luo²,

et al. 2020

IEEE Trans. Wireless Commun.

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Vehicular networks are expected to support diverse content applications with multi-dimensional quality of service (QoS) requirements, which cannot be realized by the conventional one-fit-all network management method. In this paper, a service-oriented hierarchical soft slicing framework is proposed for the cache-enabled vehicular networks, where each slice supports one service and the resources are logically isolated but opportunistically reused to exploit the multiplexing gain. The performance of the proposed framework is studied in an analytical way considering two typical on-road content services, i.e., the time-critical driving related context information service (CIS) and the bandwidthconsuming infotainment service (IS). Two network slices are constructed to support the CIS and IS, respectively, where the resource is opportunistic reused at both intra-and inter-slice levels. Specifically, the throughput of the IS slice, the content freshness (i.e., age of information) and delay performances of the CIS slice are analyzed theoretically, whereby the multiplexing gain of soft slicing is obtained.Extensive simulations are conducted on the OMNeT++ and MATLAB platforms to validate the analytical results. Numerical results show that the proposed soft slicing method can enhance the IS throughput by 30% while guaranteeing the same level of CIS content freshness and service delay. 2 Soft slicing, mobile edge caching, vehicular network, age of information, multi-dimensional QoS I. INTRODUCTION Vehicular communication networks are expected to play a critical role in the future transportation systems, especially for intelligent driving assistance and travel experience enhancement. In addition, mobile edge caching will be leveraged to effectively support content services in this highly dynamic driving environment [1]. In specific, the replica of popular contents can be pro-actively stored at the roadside units (RSUs) or on vehicles, whereby vehicles can obtain the requested contents in proximity, bringing three-fold benefits of shorter end-to-end delay, better mobility support, and reduced communication load [2], [3]. Therefore, the cache-enabled vehicular networks are expected to be one of the supporting technologies in the intelligent transportation systems [4], [5].Compared with conventional cellular networks, vehicular networks will accommodate more diversified applications with distinct features and quality of service (QoS) requirements [6].For example, the infotainment service (IS), such as news, media and social entertainments, can bring enjoyable travel experiences to both drivers and passengers. In practice, IS is usually bandwidth-consuming and requires high network throughput. The context-related information service (CIS) is needed for intelligent driving assistance, such as the traffic flow of each road, the mobility of surrounding vehicles, the availability of parking lots, and the distance to next highway entrance. Unlike the IS, the CIS is usually time-critical, and the content information of a CIS item may ...

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Section: A Infotainment Servicementioning

confidence: 99%

Hierarchical Soft Slicing to Meet Multi-Dimensional QoS Demand in Cache-Enabled Vehicular Networks

Zhang¹,

Luo²,

et al. 2020

IEEE Trans. Wireless Commun.

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“…This approach diversifies node usage for caches and avoids redundant caches. In [18], factors affecting the ICN (information centric network) cache in VANET (vehicular ad hoc network) are discussed, as follows: (1) Vehicles are reluctant to follow cache rules from a privacy perspective. (2) Network topology changes dynamically due to the high speed movement of vehicles.…”

Section: Ccnmentioning

confidence: 99%

CCN-Based Inter-Vehicle Communication for Efficient Collection of Road and Traffic Information

2020

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Recently, inter-vehicle communication, which helps to avoid collision accidents (by driving safety support system) and facilitate self-driving (by dissemination of road and traffic information), has attracted much attention. In this paper, in order to efficiently collect road/traffic information in the request/response manner, first a basic method, Content-centric network (CCN) for Vehicular network (CV), is proposed, which applies CCN cache function to inter-vehicle communication. Content naming and routing, which take vehicle mobility into account, are investigated. On this basis, the CV method is extended (called ECV) to avoid the cache miss problem caused by vehicle movement, and is further enhanced (called ECV+) to more efficiently exploit cache buffer in vehicles, caching content according to a probability decided by a channel usage rate. Extensive evaluations on the network simulator Scenargie, with a realistic open street map, confirm that the CV method and its extensions (ECV, ECV+) effectively reduce the average number of hops of data packets (by up to 47%, 63%, and 83%, respectively) and greatly improve the content acquisition success rate (by up to 356%, 444%, and 689%, respectively), compared to the method without a cache mechanism.

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“…Addressing one factor may affect the performance of other parameter(s). Although the content popularity and hop reduction in CCN have been discussed in some of the existing caching policies, such as [17,[19][20][21][22][23][24][25][26], the bandwidth consumption is still not optimal. Therefore, there is a need to devise an optimal caching strategy to increase the content availability while consuming minimum possible resources.…”

Section: Content Centric Network Sensorsmentioning

confidence: 99%

“…The authors in [24,25] propose content caching schemes for Vehicular Ad hoc Networks (VANET) using ICNs. In [24], the main objective is to reduce cache redundancy and lower caching replacement overhead. In [25], the authors propose an ICN based cost-efficient multimedia delivery model for VANET.…”

Section: Related Workmentioning

confidence: 99%

Optimal Content Caching in Content-Centric Networks

Qazi

Khalid

Rais

et al. 2019

Wireless Communications and Mobile Computing

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Content-Centric Networking (CCN) is a novel architecture that is shifting host-centric communication to a content-centric infrastructure. In recent years, in-network caching in CCNs has received significant attention from research community. To improve the cache hit ratio, most of the existing schemes store the content at maximum number of routers along the downloading path of content from source. While this helps in increased cache hits and reduction in delay and server load, the unnecessary caching significantly increases the network cost, bandwidth utilization, and storage consumption. To address the limitations in existing schemes, we propose an optimization based in-network caching policy, named as opt-Cache, which makes more efficient use of available cache resources, in order to reduce overall network utilization with reduced latency. Unlike existing schemes that mostly focus on a single factor to improve the cache performance, we intend to optimize the caching process by simultaneously considering various factors, e.g., content popularity, bandwidth, and latency, under a given set of constraints, e.g., available cache space, content availability, and careful eviction of existing contents in the cache. Our scheme determines optimized set of content to be cached at each node towards the edge based on content popularity and content distance from the content source. The contents that have less frequent requests have their popularity decreased with time. The optimal placement of contents across the CCN routers allows the overall reduction in bandwidth and latency. The proposed scheme is compared with the existing schemes and depicts better performance in terms of bandwidth consumption and latency while using less network resources.

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An Efficient Cache Strategy in Information Centric Networking Vehicle-to-Vehicle Scenario

Cited by 72 publications

References 24 publications

Hierarchical Soft Slicing to Meet Multi-Dimensional QoS Demand in Cache-Enabled Vehicular Networks

Hierarchical Soft Slicing to Meet Multi-Dimensional QoS Demand in Cache-Enabled Vehicular Networks

CCN-Based Inter-Vehicle Communication for Efficient Collection of Road and Traffic Information

Optimal Content Caching in Content-Centric Networks

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