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Fixing the unfairness of TCP congestion control: Fixing the unfairness of TCP congestion controlWowThis puts a whole new perspective on the debate about internet bandwidth throttling by ISPs... I doubt the average user who wants unrestricted internet access is aware of the impact of P2P using multiple streamsRE: Fixing the unfairness of TCP congestion controlWhy wouldn't using...; Tags: Peer to peer (P2P), TCP/IP, Network technology, NETWORKING, Overall IT, ALTQ, P2P, QoS, TCP Congestion Control, unfairness, IP, TCP, internal IP, bandwidth hog, router; Discussion threads 2008-03-24

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News to know: Ubuntu; Microsoft's Albany; Google; Safari flap: Notable headlines: Adrian Kingsley-Hughes: First look: Hardy Heron Beta. Gallery: Installation. Screen shots: OS tour Mary Jo Foley: ‘Albany': New Microsoft ‘home office' in the works? Michael Krigsman: Is IT becoming extinct? Garett Rogers: New Google Mobile feature...; Tags: Ubuntu, Google Inc., Apple Safari, Apple Inc., Microsoft Corp., Mozilla Corp., CEO, MSM, Internet, Microsoft Windows, Spyware, Adware & Malware, Cyberthreats, Wireless LANs, Operating Systems, Wireless, Open Source, Software, Security, Larry Dignan; Blog posts 2008-03-24
Fixing the unfairness of TCP congestion control: Bob Briscoe Chief researcher at the BT Network Research Centre is on a mission to tackle one of the biggest problems facing the Internet. He wants the world to know that TCP Transmission Control Protocol congestion control is fundamentally broken and he has a proposal for the IETF to fix...; Tags: Algorithm, Application, Bandwidth, Network, P2P, TCP, Bob Briscoe, Van Jacobson, Jacobson, AIMD, ECN, Tcp/Ip, Networking, Peer To Peer (P2P), Internet, George Ou; Blog posts 2008-03-24
Endlessly extending copyright: The European Commissioner for Internal Market and Services, Charlie McCreevy, recently declared that copyright for performers be extended from 50 to 95 years. This was proposed, according McCreevy, to remedy a fundamental unfairness, wherein the composer the author of a song has rights that extend 70 years after his death, whereas...; Tags: Incentive, Financial, Property, Pension, Financial Incentive, Intellectual Property, Benefits, Sales Force Management, Research & Development, Business Operations, Human Resources, Sales, John Carroll; Blog posts 2008-02-15
TCP Testing - Preventing Global Internet Warming: Do the new TCP congestion control algorithms and other changes have unfairness that could lead to congestion collapse? Testing multiple flows using applications rsync and ftp shows some unfairness exists when the bottleneck queue is large; but the new algorithms are no more unfair than standard TCP. The Transmission Control...; Tags: Ireland, Internet, Congestion, TCP, Tcp/Ip, Networking; White papers 2007-09-01

End-to-end Fairness for TCP Traffic in 802.11e Wireless Mesh Networks Without Coordination: This paper considers end-to-end per-station1 and per-flow fair bandwidth allocations for TCP traffic in 802.11 based multi-radio multi-hop networks. First it shows that TCP ACK packets have to be prioritised using IEEE 802.11e since otherwise congestion losses of ACK packets cause unpredictable performance. Then it proves that prioritising ACK packets...; Tags: Mesh Networking, Network, TCP, Fairness, Wireless, Tcp/Ip, Networking; White papers 2007-07-03
A Cross-Layer Approach for Per-Station Fairness in TCP Over WLANs: This paper investigates the issue of per-station fairness in TCP over IEEE 802.11-compliant Wireless Local Area Networks WLANs, especially in Wi-Fi hot spot. It is asserted that the hot spot suffers from the unfairness among stations in exploiting the wireless medium. The source of this unfairness is analyzed from two...; Tags: Seoul National University, Hot Spot, WLAN, TCP, Tcp/Ip, Wireless LANs, LANs, Networking, Wi-Fi, Wireless; White papers 2007-06-16
Six dang good reasons why you (probably) hate your cell phone provider: Six dang good reasons why you probably hate your cell phone providerSounds like Verizon WirelessNone of those things can be said about most phones on Cingular.Few/None of the Treo 650's features are crippled. Nor were my previous V551 or my wife's Razr.Not to mention Verizon's network isn't all that...; Tags: Telecom & Utilities, Cellular phones, Sprint Communications, phone, cell phone; Discussion threads 2007-05-14
What's the real story with Vista upgrades?: What's the real story with Vista upgrades?For the benefit of all the home users...... with upgrade coupons and irreplaceable items on their hard drives, I'm hoping that Microsoft makes it as difficult as possible to clear the drive.Difficult to read a reformatted hard drive.Yurk!That would mean, if true, that all...; Tags: Microsoft Windows Vista (Longhorn), Ghosting, Microsoft Windows Vista, Vista Upgrade; Discussion threads 2007-01-29
YouTube: Is 'cheating' hurting YouTuber community?: All may not be well in the YouTube “community.” YouTube videos allege gaming, scamming, manipulation, abuse…of the YouTube ratings and video views counting systems.Sound familiar? YouTuber talk of supposed unfairness within the YouTube video-sharing “community” is strikingly similar to Digger talk of supposed unfairness within the Digg news-sharing “community.”While the...; Tags: Web 2.0, Advertising, Google, User-Generated Content, Social Web, Video, YouTube, Amateur Content, Self-Promotion, Google Software Applications, Social Networking, Social Media, YouTube Inc.; Blog posts 2007-01-08
A Study of TCP Fairness in High-Speed Networks: Under the TCP congestion control regime, heterogeneous flows, i.e., flows with different Round-Trip Times RTTs, that share the same bottleneck link will not attain equal portions of the available bandwidth. In fact, according to the TCP friendly formula, the throughput ratio of two flows is inversely proportional to the ratio...; Tags: TCP, Tcp/Ip, Networking; White papers 2007-01-01
Queue Management Strategies to Improve TCP Fairness in IEEE 802.11 Wireless LANs: Wireless Local Area Networks WLANs based on the IEEE 802.11 technology have become increasingly popular and ubiquitous. The 802.11 standard allows each station in a WLAN equal opportunity to access the wireless channel, which can result in unfair sharing of network bandwidth between upstream and downstream TCP flows at an...; Tags: Strategy, IEEE 802.11, Network, University Of Calgary, WLAN, TCP, Wireless LANs, LANs, Wi-Fi, Tcp/Ip, Wireless, Networking; White papers 2007-01-01
Adaptive Token Bucket Algorithm for Fair Bandwidth Allocation in DiffServ Networks: This paper proposes an adaptive token bucket algorithm for achieving proportional sharing of bandwidth among aggregate flows in Differentiated Service DiffServ networks. By observing the simulation results obtained in a study of the throughput of TCP flows in a DiffServ network, the paper notes that the aggregate flow with a...; Tags: Algorithm, Bandwidth, Seoul National University, Allocation, Engineering, Tcp/Ip, Networking; White papers 2007-01-01
Testing and Analyzing TCP Performance in a Wireless-Wired Mobile Ad Hoc Test Bed: TCP is the most used connection-oriented transport protocol in the Internet nowadays. However, TCP has a number of problems when the connections are running over wireless links. This paper addresses some of them for mobile ad hoc networking. The authors have made a real-life testbed for experimenting and analyzing TCP...; Tags: TCP, Tcp/Ip, Networking; White papers 2006-11-29
GAO dings IRS on systems, monitoring: GAO dings IRS on systems, monitoringDismantle the IRSIt is my opinion that the way taxes are handled in the USA, the deep complexity of IRS regulations and processes, the necessity for most taxpayers to pay consultants to figure out their taxes each year, in short, the inherent unfairness of a...; Tags: Taxes, Free trade, Internal Revenue Service, tax, regulation, General Accounting Office, monitoring; Discussion threads 2006-11-17
TCP Fairness for Uplink and Downlink Flows in WLANs: In WLANs, fairness is an important issue because the channel is shared by many users. This paper proposes a dual queue based scheme in an Access Point AP for TCP fairness among uplink flows and downlink flows. First, the paper discusses the unfairness problem of TCP flows due to different...; Tags: WLAN, TCP, Fairness, Tcp/Ip, Networking; White papers 2006-10-30
TCP Symbiosis: Congestion Control Mechanisms of TCP Based on Lotka-Volterra Competition Model: This paper proposes TCP Symbiosis, which has a robust, self-adaptive and scalable congestion control mechanism for TCP. The method is quite different from existing approaches. The paper changes the window size of a TCP connection in response to information of the physical and available bandwidths of the end-to-end network path....; Tags: Method, TCP, Bandwidth Information, Tcp/Ip, Networking; White papers 2006-10-12
Gateway Adaptive Pacing for TCP Across Multihop Wireless Networks and the Internet: This paper introduces an effective congestion control scheme for TCP over hybrid wireless/wired networks comprising a multihop wireless IEEE 802.11 network and the wired Internet. We propose an adaptive pacing scheme at the Internet gateway for wired-to-wireless TCP flows. Furthermore, the causes for the unfairness of oncoming TCP flows are...; Tags: Gateway Inc., TCP, Tcp/Ip, Internet, Networking; White papers 2006-10-06
Half Direct-Link Setup (H-DLS) for Fairness Between External and Local TCP Connections in IEEE 802.11e Wireless LANs: The IEEE 802.11e standard supports a Direct-Link Setup DLS mechanism optionally to improve the throughput. Using this mechanism, IEEE 802.11e stations in proximity can directly exchange frames with no intervention of an access point. However, extensive simulations reveal the severe unfairness between external and local TCP connections in the IEEE...; Tags: LAN, WLAN, TCP, IEEE, Wireless, Tcp/Ip, Networking; White papers 2006-09-27
Experimental Evaluation of TCP Protocols for High-Speed Networks: In this paper we present experimental results evaluating the performance of the Scalable-TCP, HS-TCP, BIC-TCP, FAST-TCP and H-TCP proposals in a series of benchmark tests. In summary, we find that both Scalable-TCP and FAST-TCP consistently exhibit substantial unfairness, even when competing flows share identical network path characteristics. Scalable-TCP, HS-TCP, FAST-TCP...; Tags: Ireland, Network, Flow, TCP, Convergence, Tcp/Ip, VOIP, Networking, Telecommunications; White papers 2006-08-31