Bandwidth allocation

Lecture Operating systems: Lesson 45 - Dr. Syed Mansoor Sarwar. The main topics covered in this lesson include: space allocation techniques, free space management, disk structure and scheduling, access time and disk bandwidth, disk scheduling algorithms (FCFS, SSTF, Scan, C-Scan, Look, C-Look), course recap, future directions,...

31p youzhangjing_1909 28-04-2022 17 3   Download

This paper develops constrained nonlinear programming to deal with this problem for two competitive ISPs. The condition for reaching the equilibrium between the two competitive firms is derived. The market equilibrium price and bandwidth resource allocations are derived as closed form solutions.

14p vinguyentuongdanh 19-12-2018 29 0   Download

In reservation-based bandwidth sharing protocols, the base station relies on the stations’ requests to allocate time slots to them. Like most other protocols, reservation-based protocols were designed with the assumption that all stations respect the rules of the protocols.

10p dannisa 14-12-2018 19 1   Download

In this paper, two approaches for Dynamic Bandwidth Allocation in GPON networks are proposed, andvalidated through simulations in the OPNET modeler. One approach address a Status Reporting scheme, where the bandwidth allocation originates from the client request. The second use a centralized Non Status Reporting scheme. Mời các bạn cùng tìm hiểu và tham khảo tài liệu. 

10p maurodybala 28-08-2015 41 3   Download

In multiuser rate allocation problem, a set of transmitters want to transmit the video sequences to corresponding receivers through a common channel that is shared by all transmitters. Since the transmitters compete for the same resource, i.e., channel bandwidth, they form a non-cooperative social network. The key problem in this social network is how to e±ciently and fairly allocate data rate among di®erent users.

41p dambaotaikhoan 06-05-2013 81 3   Download

We introduce a novel multi-resource allocator to dynam- ically allocate resources for database servers running on virtual storage. Multi-resource allocation involves pro- portioning the database and storage server caches, and the storage bandwidth between applications according to overall performance goals. The problem is challenging due to the interplay between different resources, e.g., changing any cache quota affects the access pattern at the cache/disk levels below it in the storage hierarchy.

14p yasuyidol 02-04-2013 59 3   Download

Moreover, typically, previous work investigated en- forcing a given resource partitioning of a single re- source, within a single software tier at a time. In our own previous work in the area of dynamic parti- tioning, we have investigated either partitioning mem- ory, through a simulation-based exhaustive search ap- proach [24], or partitioning storage bandwidth, through an adaptive feedback-loop approach [23], but not both.

15p yasuyidol 02-04-2013 52 4   Download

FDM Useful bandwidth of medium exceeds required bandwidth of channel Each signal is modulated to a different carrier frequency Carrier frequencies separated so signals do not overlap (guard bands) e.g. broadcast radio Channel allocated even if no data

38p trada85 18-01-2013 54 6   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Dynamic Bandwidth Allocation Based on Online Traffic Prediction for Real-Time MPEG-4 Video Streams

10p dauphong20 10-03-2012 43 2   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Energy-Efficient Bandwidth Allocation for Multiuser Scalable Video Streaming over WLAN

14p sting10 07-03-2012 45 3   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Fair Adaptive Bandwidth and Subchannel Allocation in the WiMAX Uplink

13p sting08 20-02-2012 35 2   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Power allocation, bit loading and sub-carrier bandwidth sizing for OFDM-based cognitive radio

24p dauphong12 07-02-2012 39 3   Download

Recently, considerable research effort has been put into the direction of integrating the broadband wired ATM [1] and wireless technologies. In 1996 the ATM Forum approved a study group devoted to wireless ATM, WATM. WATM [2–4] aims to provide end-to-end ATM connectivity between mobile and stationary nodes. WATM can be viewed as a solution for next-generation personal communication networks, or a wireless extension of the B-ISDN networks, which will support guaranteed QoS integrated data transmission.

25p tienvovan 18-09-2010 75 5   Download

In this chapter we present some of our results concerning source models for H.261 coded VBR (variable bit rate) video. Video services have been forecasted to be a substantial portion of the traf®c on emerging broadband digital networks. Statistical source models of video traf®c are needed to design networks that delivery acceptable picture quality at minimum cost, and to control and shape the output rate of the coder.

34p vaseline 30-08-2010 97 16   Download

Recent years have witnessed a tremendous growth in the wireless networking industry. The growing use of wireless networks has brought the issue of providing fair wireless channel arbitration among contending flows to the forefront. Fairness among users implies that the allocated channel bandwidth is in proportion to the “weights” of the users.

24p huggoo 20-08-2010 69 5   Download

The tremendous growth of the mobile users’ population coupled with the bandwidth requirements of new cellular services is in contrast to the limited spectrum resources that have been allocated for mobile communications. The objective of channel allocation is to assign a required number of channels to each cell such that efficient frequency spectrum utilization is provided and interference effects are minimized.

20p huggoo 20-08-2010 71 4   Download

In this switching mechanism, a circuit is allocated to every piece of complete information (called a call). This circuit allocation is all the way from the sending to the receiving computer or terminal. It stays in place throughout the duration of the call until the sending (or receiving) side signals that it is not needed any more. In more formal terms, we say that a fixed bandwidth is guaranteed throughout the communication session.

20p longtuyenthon 26-01-2010 86 19   Download

ADC revolutionized the in-building wireless industry with InterReach Unison and it soon became the world standard. Yet today — with continued carrier consolidation, ever-changing spectrum allocation, and the unceasing bandwidth demand to meet voice and high-speed data requirements — the need for a true multi-band wireless solution has become paramount. That’s where InterReach Fusion SingleStar comes in.

4p maiphuong 14-08-2009 81 6   Download

FlexWave MMW addresses the increasing shortage in metro access capacity by taking advantage of the recently allocated licensed 71-86 GHz spectrum. By using the unique propagation characteristics and the wide bandwidth of that spectrum, FlexWave MMW can support extremely high speed data transmission for short communication links.

4p mylinh 13-08-2009 73 5   Download

Campus-RS™ FLEX is an interface module that installs directly into a Campus-RS remote or Campus-RS Star concentrator and provides a multiport local interface capable of supporting a wide range of concurrent data, voice and video applications. Campus-RS FLEX supports a line speed of 1.544 Mbps (T1) and provides the capability to allocate this bandwidth between the single DSX-1 port and the two serial data ports. The DSX-1 provides support for up to 24 voice channels over a T1 backbone.

2p thuyvan 13-08-2009 123 10   Download