Comparison of caching strategies in modern cellular backhaul networks

It has been a recent trend of Internet service providers (ISPs) to deploy content delivery networks (CDNs) extensively in their infrastructure in order to utilize their network resources and generate a new profit source. This 'telco CDN' has become an attractive solution since it enables the ISP to use their own network topology and real-time traffic information to address the bottlenecks, and seek for near-optimal path to convey the content to the users. However, since the location of telco CDN cache is limited to their ISP region, it became difficult to bring its performance benefit to the users outside the ISP region and it also led to suboptimal traffic reduction at ISP borders.CDN interconnection (CDNi) is an emerging technology which has a potential to eliminate the redundant HTTP traffic received from external CDNs. A telco CDN can minimize the CDN traffic crossing the ISP border and at the same time deliver the content to their users quickly from its local cache by temporarily caching the content owned by a collaborating peer CDN. In this paper, we have studied the performance of CDNi when applied to the fastgrowing cellular Internet traffic. We have simulated the CDNi protocol to gauge the bandwidth savings along with request redirection overheads using 7.7 billion HTTP logs (290 TBs by the byte volume) from one of the largest cellular ISPs in South Korea. We observed that 69% of total downlink traffic passes the Internet Exchange point (IXP), and according to our simulation results, intra-ISP CDN with CDNi can remove 16.2% to 29% of the IXP traffic. We also saw that the CDNi request redirection overhead could be significant to small objects, but it is still expected that if only large HTTP objects are redirected, a large bandwidth would be saved.

show abstract

“…In this paper, we analyze the HTTP traffic at one of the largest cellular ISP in South Korea, obtained from our prior work [10].…”

Section: Measurement Environment and Datasetmentioning

confidence: 99%

Analyzing the effectiveness of content delivery network interconnection of 3G cellular traffic

Nam

Park

2014

Proceedings of the Ninth International Conference on Future Internet Technologies

Self Cite

View full text Add to dashboard Cite

show abstract

“…The main concern is to entertain every request and maximize the cache hit ratio via Openflow protocols [10] to ensure valuable communications. To share traffic load in tangible time, Coordinating cache [9] share their MBD status with some neighbouring cache. Specific content delivery networks [9].…”

Section: Figure 2: Mbd Storage In Wireless Networkmentioning

confidence: 99%

“…To share traffic load in tangible time, Coordinating cache [9] share their MBD status with some neighbouring cache. Specific content delivery networks [9]. (1) Where H R is the Hit rate and MR is the Miss rate.…”

Section: Figure 2: Mbd Storage In Wireless Networkmentioning

confidence: 99%

SDN Low Latency for Medical Big Data Using Wavelets

Shah¹,

Li²,

Memon³

2017

SJCMS

View full text Add to dashboard Cite

New era is the age of 5G. The network has moved from the simple internet connection towards advanced LTE connections and transmission. The information and communication technology has reshaped telecommunication. For this, among many types of big data, Medical Big Data is one of the most sensitive forms of data. Wavelet is a technical tool to reduce the size of this data to make it available for the user for more time. It is also responsible for low latency and high speed data transmission over the network. The key concern is the Medical Big Data should be accurate and reliable enough so that the recommended treatment should be the concerned one. This paper proposed the scheme to support the concept of data availability without losing crucial information, via Wavelet the Medical Data compression and through SDN supportive architecture by making data availability over the wireless network. Such scheme is in favor of the efficient use of technology for the benefit of human beings in the support of medical treatments.

show abstract

“…Mobile networks typically follow a hierarchical structure, which conceptually comprises three abstract layers: the edge, backhaul and core networks [9], [12]. The edge network is the radio access network (RAN) and consists of a set of base stations and mobile devices, which communicate directly over wireless communication channels, e.g.…”

Section: A Mobile Networkmentioning

confidence: 99%

Edge Reduce: Eliminating Mobile Network Traffic Using Application-Specific Edge Proxies

Pamboris

Pietzuch

2015

2015 2nd ACM International Conference on Mobile Software Engineering and Systems

View full text Add to dashboard Cite

Abstract-Mobile carriers are struggling to cope with the surge in smartphone traffic, which reflects badly on end users who often experience poor connectivity in densely populated urban environments. Data transfers between mobile client applications and their Internet backend services contribute significantly to the contention in radio access networks (RANs). Client applications, however, typically transfer unnecessary data because (i) backend service APIs do not support a fine-grained specification of the data actually required by clients and (ii) clients aggressively prefetch data that is never used.We describe EDGEREDUCE, an automated approach for reducing the data transmitted from backend services to a mobile device. Based on source-level program analysis, EDGEREDUCE generates application-specific proxies for mobile client applications that execute part of the application logic at the network edge to filter data returned by backend API calls and only send used data to the client. EDGEREDUCE also permits the tuning of aggressive prefetching strategies: proxies replace large prefetched objects such as images by futures, whose access by the client triggers the retrieval of the object on-demand. We show that EDGEREDUCE reduces the RAN traffic for real-world iOS client applications by up to 8×, with only a modest increase in response time.

show abstract

Comparison of caching strategies in modern cellular backhaul networks

Cited by 126 publications

References 21 publications

Analyzing the effectiveness of content delivery network interconnection of 3G cellular traffic

Analyzing the effectiveness of content delivery network interconnection of 3G cellular traffic

SDN Low Latency for Medical Big Data Using Wavelets

Edge Reduce: Eliminating Mobile Network Traffic Using Application-Specific Edge Proxies

Contact Info

Product

Resources

About