Posted in Data In The Enterprise

Computer Networks: Performance and Quality of Service by Ivan Marsic

By Ivan Marsic

Show description

Read Online or Download Computer Networks: Performance and Quality of Service PDF

Similar data in the enterprise books

CCNA Voice Official Exam Certification Guide (640-460 IIUC)

Grasp IIUC 640-460 examination issues with the legit learn advisor investigate your wisdom with chapter-opening quizzes assessment key ideas with examination practise projects perform with reasonable examination questions about the CD-ROM CCNA Voice respectable examination Certification consultant is a better of breed Cisco examination research consultant that focuses particularly at the ambitions for the CCNA Voice IIUC 640-460 examination.

X.400 and SMTP: Battle of the E-mail Protocols

X. four hundred and X. 500: An creation is geared toward people with present or deliberate involvement within the administration of X. four hundred, together with messaging managers, process or community planners, and software program builders. This e-book presents historical past wisdom of mailing platforms and performance in addition to a take hold of of the way the underlying community operates.

Network Service Investment Guide: Maximizing ROI in Uncertain Times (Networking Council)

This first-ever valuation advisor exhibits how you can pick out and deal with network-based providers to make sure greatest go back on funding Explains easy methods to deal with the prices and tradeoffs among allotted and centralized administration constructions indicates how you can stay away from risking an excessive amount of for too little go back because of unpredictable total industry stipulations Covers network-based prone akin to net entry, program administration, webhosting, voice and information companies, and the recent breed of SOAP/XML net providers

Random Processes for Image Signal Processing

"This publication provides readers an intuitive appreciation for random features, plus thought and strategies worthy for stylish purposes. It covers likelihood idea, random approaches, canonical illustration, optimum filtering, and random versions. moment within the SPIE/IEEE sequence on Imaging technology & Engineering.

Additional info for Computer Networks: Performance and Quality of Service

Example text

In the exposed station problem, Ivan Marsic • Rutgers University 44 station C defers transmission to D because it hears B’s transmission, as illustrated in Figure 1-29(b). If C senses the medium, it will hear an ongoing transmission and falsely conclude that it may not send to D, when in fact such a transmission would cause bad reception only in the zone between B and C, where neither of the intended receivers is located. Thus, the carrier sense mechanism is insufficient to detect all transmissions on the wireless medium.

0 Figure 1-28: Efficiency of the ALOHA MAC protocol. ) Pa = τ ⋅ G, where τ = 1 is the slot duration and G is the total arrival rate on the channel (new and backlogged packets, combined). ” We define receiver’s vulnerable period as the time during which other transmissions may cause collision with sender’s transmission. For pure ALOHA, the vulnerable period is two slots long [t − 1, t + 1), as illustrated in Figure 1-27. Any transmission that started within one packet-time before this transmission or during this transmission will overlap with this transmission and result in a collision.

In general case it is required that N ≤ W. The sliding window sender should store in local memory (buffer) all outstanding packets for which the acknowledgement has not yet been received. Therefore, the send buffer size should be N packets large. The sent-but-unacknowledged packets are called “in-flight” packets or “intransit” packets. The sender must ensure that the number of in-flight packets is always ≤ N. The sliding window protocol is actually a family of protocols that have some characteristics in common and others different.

Download PDF sample

Rated 4.52 of 5 – based on 28 votes