transmission control protocol tcp

... cited. 1. INTRODUCTION The transmission control protocol (TCP) is the most widely used transport layer protocol in the networking world. Many of the features supported by the TCP were developed based ... issue associated with the TCP and ad hoc networks. The au- thors of [1] proposed feedback-based extensions to the TCP and termed the new protocol TCP-ELFN. In their protocol, the sender probes ... for transmission. Another transport layer protocol proposed for ad hoc networks, multiflow real-time transport protocol (MRTP) [5], is primarily used for real-time data transmission. This protocol

Ngày tải lên: 22/06/2014, 22:20

... section, several congestion avoidance and control protocols, rate adjustment mechanisms, fairness schemes, and transport protocols for wireless sensor networks are protocols in WSNs and a detailed survey ... traditional protocol stack These approaches include hop-by-hop flow control based on buffer occupancy, rate limiting to implement fairness, and a prioritized medium access control (MAC) protocol ... throughput Congestion control protocols for wireless sensor networks generally consist of two basic parts Firstly, a congestion detection mechanism and secondly, a rate-control mechanism to adjust

Ngày tải lên: 21/06/2014, 23:20

... CSMA/CA and MACAW protocols in underwater acoustic channel environment  Propose a new MAC protocol based on the FAMA protocol  Propose a new MACA-based MAC protocol called MACA-C protocol  Propose ... successful transmissions [64] Figure 4- 3 P-Aloha protocol process model 4.1.2 CSMA and CSMA/CA protocols [65] In the CSMA protocol, a station checks for the absence of other traffic on a shared transmission ... MACAW protocol process model. Figure 4- 6 A successful handshake MACAW protocol Figure 4- 7 MACAW protocol process modelThe simulation of protocolsThe simulations will focus on three MAC protocols:

Ngày tải lên: 01/08/2021, 10:04

... access control (MAC) protocols Several MAC protocols, introduced to reduce the energy consumption, improve the lifetime of WSNs [5] Unfortunately, most of the application-dependent [6] MAC protocols ... addressable lighting interface controller (DALIC) A DALIC consists of a controller and supports single or multiple lighting devices The controller monitors and controls each light by using bi-directional ... low-power real-time medium access control (LPR-MAC) The simulation results indicate that BN-MAC is a robust and energy-efficient protocol that outperforms other hybrid MAC protocols in the context of

Ngày tải lên: 02/11/2022, 09:25

... 2Figure 13.1 TCP/IP protocol suiteTrang 3TCP/IP Protocol Suite 3SCTP is a message-oriented, reliable protocol that combines the good features of UDP and TCP. Note: Trang 5TCP/IP Protocol Suite ... Flow control, receiver siteTrang 59TCP/IP Protocol Suite 59Figure 13.28 Flow control, sender site Trang 60Figure 13.29 Flow control scenarioTrang 61TCP/IP Protocol Suite 6113.7 ERROR CONTROL ... 55TCP/IP Protocol Suite 55Figure 13.25 Simultaneous open Trang 56Figure 13.26 Simultaneous closeTrang 57TCP/IP Protocol Suite 5713.6 FLOW CONTROL Flow control in SCTP is similar to that in TCP

Ngày tải lên: 11/04/2023, 10:47

... 2Figure 13.1 TCP/IP protocol suiteTrang 3TCP/IP Protocol Suite 3SCTP is a message-oriented, reliable protocol that combines the good features of UDP and TCP. Note: Trang 5TCP/IP Protocol Suite ... 13.27 Flow control, receiver siteTrang 59TCP/IP Protocol Suite 59Figure 13.28 Flow control, sender site Trang 60Figure 13.29 Flow control scenarioTrang 61TCP/IP Protocol Suite 6113.7 ERROR CONTROL ... 55TCP/IP Protocol Suite 55Figure 13.25 Simultaneous open Trang 56Figure 13.26 Simultaneous closeTrang 57TCP/IP Protocol Suite 5713.6 FLOW CONTROL Flow control in SCTP is similar to that in TCP

Ngày tải lên: 11/04/2023, 10:47

... the energy consumption during retransmissions using a novel protocol that localizes bit-errors at the MAC layer The proposed protocol, referred to as Selective Retransmission using Virtual Fragmentation ... these protocols are not true hop-by-hop reliability protocols, although it has been acknowledged widely that hop-by-hop reliability is the key to overall network reliability [7 11] Some of these protocols ... hoc reliability protocol [9,17] In [13], Modiano proposed a true hop-by-hop reliability mechanism, which has better energy usage than standard Simple Positive-ACK protocol This protocol, called

Ngày tải lên: 21/06/2014, 22:20

... 1.2 TCP traffic control traffic control It is known that flow control protects the re-cipient from being overwhelmed, while congestion control protects the network from being overwhelmed Flow control ... traditional TCP-based protocols cannot deal with the bandwidth errors since TCP assumes that packet loss occurs due to network de-livery (QoD) Moreover, the use of stop-and-wait ARQ in TCP-based protocols ... of TCP-based protocols that packet error (lost or damaged) is due to network congestion is not true for wireless networks For wireless networks, it is important to reduce the number of retransmissions

Ngày tải lên: 22/06/2014, 19:20

... model of TCP throughput [24], known also as the TCP-compatible rate control equation Notice, however, that the application of the model in a multicast environment is not straightforward 4.2.1 TCP ... respectively, the good-put and the TCP-compatible measures in order to evidence the benefits of the TCP-compatible rate control in this lay-ered multicast transmission system In the sequel, these ... ap-proaches are, respectively, called goodput-based source tive rate control (GB-SARC) and TCP-friendly source adap-tive rate control (TCPF-SARC) The constant K is set to 4 in the experiments In addition,

Ngày tải lên: 23/06/2014, 01:20

... Trang 1Module 9TCP/IP Protocol and IP Addressing Trang 22 Version 3.0History of TCP/IP • The U.S Department of Defense (DoD) created the TCP/IP reference model because it ... Layer • The application layer of the TCP/IP model handles high-level protocols, issues of representation, • The Application layer of the TCP/IP model has protocols to support file transfer, ... for packets to travel • The main protocol that functions at this layer is the Internet Protocol (IP) Trang 11Internet LayerThe following protocols operate at the TCP/IP Internet layer: • IP provides

Ngày tải lên: 27/06/2014, 19:20

... developed Transmission Control Protocol/Internet Protocol(TCP/IP) to interconnect various defense department computer networks • The Internet, an International Wide Area Network, uses TCP/IP to ... applications – Transmission control protocol (TCP) – Connection oriented – User datagram protocol (UDP) – Connectionless Application layer • Responsibility – Handles high-level protocols, issues ... across the world TCP/IP protocol stack • Focus on IP Network level: •Multiple higher-layer protocols to applications •Multiple lower-layer protocols to physical links •Only IP protocol at the

Ngày tải lên: 05/07/2014, 00:20

... properly cited. Study protocol The implementation of a translational study involving a primary care based behavioral program to improve blood pressure control: The HTN-IMPROVE study protocol (01295) ... intervention by comparing 12-month pre/post changes in BP control between patients in intervention sites versus patients in the matched control sites Next, we examine the sustainability of the ... developed and previously evaluated in the Veteran-Study To Improve The Control of Hyper-tension (V-STITCH) [7,8], and refined in Take Control of Your Blood (TCYB) Pressure study [9-11] and Hyperten-sion

Ngày tải lên: 10/08/2014, 10:23

... Trang 1Open AccessStudy protocol A randomized controlled trial of interventions to enhance patient-physician partnership, patient adherence and high blood pressure control among ethnic minorities ... randomization, at three months, and at twelve months of follow-up) BP control is dichot-omized as uncontrolled (SBP ≥ 140 mmHg or DB P ≥ 90 mmHg) or controlled (SBP <140 mmHg and DBP <90 mmHg) The data ... physicians and 500 of their patients who have uncontrolled hypertension into the Patient-Physician Partnership (Triple P) study, a rand-omized controlled trial with a two-by-two factorial design,

Ngày tải lên: 11/08/2014, 05:21

... al.: Multicentric, ran- domized, controlled trial to evaluate blood glucose control by the model predictive control algorithm versus routine glucose management protocols in intensive care unit ... way to achieve tight glycaemic control. Glycaemia in patients with high BMI and APACHE II scores may be more difficult to control using intensive insulin therapy protocols. Trial registration ... were excluded. Intensive insulin therapy protocol The IIT protocol (Additional file 1) was developed by the ICU consultant (PG), based on a published protocol [9], in con- junction with the senior

Ngày tải lên: 13/08/2014, 03:21

... this study was to measure the effect of the SPRINT protocol on glycaemic control and mortality compared with previous ICU control methods Glycaemic control and mortality outcomes for 371 SPRINT patients ... of a protocol, developed from model-based controllers [36,37], that modulates both nutrition and insulin to provide tight glycaemic control together with easy clinical implementation The protocol ... eval-uate the effect the implementation of the protocol has had on mortality outcomes Materials and methods Protocol Model-based tight blood glucose control is possible with a val-idated patient-specific

Ngày tải lên: 13/08/2014, 10:20

... in ZigBee network 4.1 Control performance of the standard controller 4.2 Control performance of the proposed controller 4.3 Control performance of the multirate controller 5.1 Estimation ... time Typical examples of token-passing control networks are ControlNet [5], MAP (IEEE 802.4), and Profibus [6] CAN-based network (Control Area Network) protocols are optimized for short messages, ... arbitration policies in the network MAC protocols can be roughly divided into two categories, namely sequential MAC protocols and random MAC protocols Under sequential MAC protocols, each user of the network

Ngày tải lên: 13/11/2014, 05:59

... showed that mosquito control decreased, but bird control increased, the chance of an outbreak Bowman et al [7] proposed a single-season ordinary differential equation model for the transmission dynamics ... thesis, we study the transmission dynamics and spatial spread of vector borne diseases using mathematical models incorporating different factors, contributing to the com- plicated transmission dynamics ... of the transmission dynam- ics and spatial spread of vector borne diseases Dr Ross was awarded the second Nobel Prize in Medicine for his demonstration of the dynamics of the malaria transmission

Ngày tải lên: 13/11/2014, 10:19

... Delay-centric TCP algorithms such as Vegas do keep the delay low bybeing very conservative in growing the cwnd TCP Nice [66] and TCP LowPriority (TCP-LP) [40] are both TCP congestion control algorithms ... Related Work 8 2.1 TCP Congestion Control 8 2.1.1 Traditional cwnd-based Congestion Control Algorithms 9 2.1.2 Rate Based Congestion Control Algorithms 12 2.2 Improving TCP Performance ... with tcpdump 26 3.2 24 hour downstream throughput of UDP and TCP for ISP A 30 3.3 24 hour downstream throughput of UDP and TCP for ISP B 31 3.4 24 hour downstream throughput of UDP and TCP for

Ngày tải lên: 09/09/2015, 11:17

... 1993) Transmission Direct routes include contact with infected pigs and infected semen, and vertical transmission from sows to offspring Oral and nasal transmission have been proven under controlled ... Ontario, Canada © Hien Thanh Le, December, 2011 Trang 2ABSTRACT EPIDEMIOLOGICAL ASPECTS OF TRANSMISSION AND CONTROL OF PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS INFECTION AND ASSOCIATED ... the investigation of within-herd transmission of PRRS virus (PRRSV) infection in commercial herds typically present in Ontario; to the evaluation of commonly used control strategies; and to the

Ngày tải lên: 14/03/2019, 10:33

... 1S T U D Y P R O T O C O L Open AccessRandomized control trial of computer-based training targeting alertness in older adults: the ALERT trial protocol Thomas VanVleet1,2* , Michelle Voss3,4, ... decision-making, as well as cognitive and motor control functions; all of which are significantly modulated by an individual’s level of alertness The control of alertness also significantly declines ... decision-making, as well as cognitive and motor control functions [1–3] Studies show that cognitive decline is paralleled by the atrophy of the neuromodulatory control machinery that crucially sup-ports

Ngày tải lên: 10/01/2020, 12:34