TIME DOMAIN MEDIUM ACCESS CONTROL PROTOCOLS FOR UNDERWATER ACOUSTIC NETWORKS
TIME DOMAIN MEDIUM ACCESS CONTROL PROTOCOLS FOR UNDERWATER ACOUSTIC NETWORKS
... is an investigation of time domain medium access control (MAC) protocols, specifically those based on Medium Access Collision Avoidance (MACA), for Underwater Acoustic Networks (UAN) A review ... ii TIME DOMAIN MEDIUM ACCESS CONTROL PROTOCOLS FOR UNDERWATER ACOUSTIC NETWORKS SHIRAZ SHAHABUDEEN (B.Eng., NUS, M.Tele.Eng., University of Melbourne) A THESIS SUBMITTED FOR THE DEGREE ... MAC for UANs have been actively researched for many years This thesis presents novel research findings on time- domain and MACA-based (Medium Access with Collision Avoidance) MAC protocols for...
- 268
- 262
- 0
Báo cáo hóa học: " Energy-Efficient Medium Access Control Protocols for Wireless Sensor Networks" docx
... aware multiaccess protocol with signaling for ad hoc networks,” ACM SIGCOMM Computer Communication Review, vol 28, no 3, pp 5–26, 1998 P802.11, “Ieee standard for wireless lan medium access control ... transmission time for each TRFR message comply with a uniform distribution, and carrier sensing is done before sending Since hidden problem is accessible for our system, the performance will be ... RELATED WORKS AND PRELIMINARIES 2.1 Energy-efficient MAC protocols In contrast to typical MAC protocols of WLAN, MAC protocols designed for WSNs usually trade off performance (such as latency, throughput,...
- 17
- 286
- 0
Báo cáo hóa học: " Research Article Energy-Efficient Reservation-Based Medium Access Control Protocol for Wireless Sensor Networks" doc
... slot scheduling algorithm performs well in static networks, but lacks support for dynamic network Self-Organizing Medium Access Control for Sensor Networks (SMACS) [30] protocol assigns a locally ... 22 EURASIP Journal on Wireless Communications and Networking [22] W Ye, J Heidemann, and D Estrin, Medium access control with coordinated adaptive sleeping for wireless sensor networks,” IEEE/ACM ... IEEE Std 802.15.4-2003, wireless medium access control (MAC) and physical layer (PHY) specifications for low-rate wireless personal area networks (WPANs) [25] ZigBee Alliance Document 053474r06; ZigBee...
- 22
- 404
- 0
Design of medium access control techniques for cooperative wireless networks
... DESIGN OF MEDIUM ACCESS CONTROL TECHNIQUES FOR COOPERATIVE WIRELESS NETWORKS WANG YU (B Eng., Huazhong University of Science and Technology, China) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR ... delivered in a 1.1 Cooperative Medium Access Control Figure 1.2: System model for centralized networks Figure 1.3: System model for distributed networks 1.1 Cooperative Medium Access Control well-organized ... interconnection (OSI) model of computer networks, media access control is a sublayer of the data link layer as shown in Fig 1.1 Since medium access control and media access control are often used interchangeably,...
- 170
- 227
- 0
Design, analysis, and performance evaluation for handshaking based MAC protocols in underwater acoustic networks
... Underwater MAC Protocols We first focus on the existing underwater handshaking- based MAC protocols; then, we shall briefly describe some proposals for non -handshaking protocols Handshaking- based MAC protocols ... benchmarking protocol for more advanced underwater handshaking- based MAC protocols We aim to enhance channel utilization of handshaking- based MAC protocols, which in turn will offer performance gains in ... DESIGN, ANALYSIS, AND PERFORMANCE EVALUATION FOR HANDSHAKING BASED MAC PROTOCOLS IN UNDERWATER ACOUSTIC NETWORKS NG HAI HENG (B.Eng (Hons), MMU ) A THESIS SUBMITTED FOR THE DEGREE...
- 180
- 433
- 1
Báo cáo hóa học: " Multihop Medium Access Control for WSNs: An Energy Analysis Model" potx
... a theoretical analysis for the energy consumption of MAC protocols and the underlying physical layer This analysis can be used for the study of Multihop MAC for WSNs: An Energy Analysis Model ... the energy consumption showing that medium access control consumes almost orders of magnitude more energy than in the analysis without medium access control Therefore, a simpler analysis can illustrate ... the radio-specific optimum transmission distance dchar with optimal power control, nonuniform random short and long Multihop MAC for WSNs: An Energy Analysis Model demands regular sleep periods...
- 18
- 254
- 0
Báo cáo hóa học: " An Optimal Medium Access Control with Partial Observations for Sensor Networks" docx
... Aloha and TCP, use this kind of information for the rate control Current proposals for medium access protocol in sensor networks make use of randomized controllers The study of performance and ... There exists a constant C such that for any π ∈ Π, there is an observation r for which π − F[π, g(π), r] ≥ , for all < ≤ C, and for any norm · Proof This basically means that for any state, there ... theory, steps and cannot This is because πk is a Markov chain defined on an (uncountable) metric space, and therefore to analyze its properties, we need π(3) Optimal MAC with Partial Observations...
- 18
- 184
- 0
Time domain equalization for underwater acoustic OFDM systems with insufficient cyclic prefix
... alternative to time domain equalizers is their frequency domain counterparts Frequency domain equalizer for OFDM with insufficient CP are covered in [26; 27; 28] Among the frequency domain equalizers ... reflection point for the signal induced by the surface waves [31] Figure 2.1: Cyclic Prefix inserted at the front of an OFDM symbol in time domain Figure 2.1 shows an OFDM symbol with CP The CP ... three plots, the BER performances of the OFDM with sufficient CP are included for comparison The UTC equalizer with shorter CP performs almost as good as OFDM symbol with sufficiently long CP...
- 89
- 297
- 0
Medium access control and energy efficient routing for mobile ad hoc networks
... SURVEY OF AD HOC ROUTING PROTOCOLS 28 3.2.4 Ad Hoc On-Demand Distance Vector Routing The Ad Hoc On-Demand Distance Vector (AODV) [6] routing protocol enables dynamic self-starting multi-hop routing ... Since most mobile ad hoc networks are battery-operated systems, they are energy and bandwidth constrained Power and energy efficient design becomes one of the most important design concerns for MANETs ... routing to reduce routing overhead The storage overhead is also limited to a small table for storing routing and location information of neighbors Nonetheless, additional overhead for location services...
- 114
- 193
- 0
Medium access control survey kumar
... Window Immediate access when medium is idle >= DIFS DIFS PIFS SIFS Busy Medium Defer Access Backoff Window Next Frame Slot Time Select Slot and decrement backoff as long as medium stays idle ... DPSM for multi-hop MANETs that use asynchronous clocks 3.2.3 Power control medium access control (PCM) Previous approaches of power control used alternating sleep and wake states for nodes [27,32,34] ... PIFS SIFS Busy Medium Defer Access Backoff Window Next Frame Slot Time Select Slot and decrement backoff as long as medium stays idle Fig The EDCF channel access scheme 346 S Kumar et al / Ad...
- 33
- 327
- 0
Báo cáo hóa học: "DRO: domain-based route optimization scheme for nested mobile networks" pdf
... Access Router nAR: new Access Router MR: Mobile Router CN: Correspondent Node MNN: Mobile Network Node RMR: Root Mobile Router (b) The path before route optimization The path after route optimization ... hierarchy-based route optimization schemes [11,12] support route optimization for interdomain routing, a non-optimal route is formed when the CN and the MNN are located in the same nested mobile network ... protocol (DSR) for mobile ad hoc networks for IPv4, in IETF RFC 4728 (February 2007) Page 19 of 19 26 MC Chuang, JF Lee, DRO: domain-based route optimization scheme for nested mobile networks,...
- 19
- 307
- 0
Báo cáo hóa học: "Research Article Efficient Vector-Based Forwarding for Underwater Sensor Networks" ppt
... energy efficiency 3 Vector-Based Forwarding Protocol (VBF) In this section, we present our vector-based forwarding (VBF) protocol and its enhanced version, hop-by-hop vector-based forwarding (HH-VBF) ... packet and continues forwarding the packet; otherwise, it simply discards the packet In this way, all the packet forwarders in the sensor network form a “routing pipe”: the sensor nodes in this ... networks, we propose an enhanced version of VBF: Hop-by-hop Vector-based Forwarding (HH-VBF) 3.5 VBF Enhancement: Hop-by-Hop Vector-Based Forwarding (HH-VBF) In HH-VBF, we redefine the routing virtual...
- 13
- 410
- 0
Báo cáo hóa học: " Research Article A Multievent Congestion Control Protocol for Wireless Sensor Networks" pptx
... packet Therefore, data packets are piggybacked to update buffer state When a sensor x sends out a data packet, it piggybacks its residual-buffer size in the frame header If a neighbor y overhears ... the next hop node’s transport buffer Nodes maintain a queue at the transport layer and Faisal B Hussain et al forward a single packet from it during their allocated slots Packet delivery time not ... Each node maintains data and schedule intervals, therefore, the operation of MCCP can be subdivided into schedule interval and data interval operations Each schedule interval is followed by a...
- 12
- 312
- 0
Báo cáo hóa học: " Research Article Efficient MAC Protocols for Wireless Sensor Networks Endowed with Directive Antennas: A Cross-Layer Solution" pot
... pp 171–180, Los Angeles, Calif, USA, November 2003 [18] G Lu, B Krishnamachari, and C S Raghavendra, “An adaptive energy-efficient and low-latency MAC for data gathering in sensor networks, ” in Proceedings ... The channel access is managed by means of the carrier sense multiple access with collision avoidance (CSMA/CA) scheme, as specified in [19] Before transmitting a packet toward a certain angular sector, ... antennas on sensor hardware platforms is feasible with minimal additional cost [7] However, the MAC and the network (NWK) layers must be modified and made aware of the presence of enhanced antennas...
- 9
- 212
- 0
Từ khóa: access control frameworks for a distributed systemdisplay the access control list for file1 do the permissions in the acl match the permissiondisplay the access control list for file2 do the group permissions match the permissions asmedium access control modeling and simulationđiều khiển truy nhập môi trường medium access controlđiều khiển truy nhập môi trường mac medium access controlmulticast routing protocols for mobile adhoc networks ppttransport protocols for ad hoc networks25 a standard set of protocols for packet switched networks introduced2 privileges and access control for queuesfinancials sap solutions for governance risk and compliance and sap grc access controlconfigure an access control list file for network servicespl sql native compilation and access control for network utility packagespfmt either alone or in combination with adjunctive therapies when considering all treatment protocols for the treatment for sui in women in the short and medium terms up to 12 months after treatmentsolving for time domain responseBáo cáo thực tập tại nhà thuốc tại Thành phố Hồ Chí Minh năm 2018Báo cáo quy trình mua hàng CT CP Công Nghệ NPVchuyên đề điện xoay chiều theo dạngNghiên cứu tổ chức pha chế, đánh giá chất lượng thuốc tiêm truyền trong điều kiện dã ngoạiNghiên cứu tổ hợp chất chỉ điểm sinh học vWF, VCAM 1, MCP 1, d dimer trong chẩn đoán và tiên lượng nhồi máu não cấpNghiên cứu tổ chức chạy tàu hàng cố định theo thời gian trên đường sắt việt namđề thi thử THPTQG 2019 toán THPT chuyên thái bình lần 2 có lời giảiGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitĐỒ ÁN NGHIÊN CỨU CÔNG NGHỆ KẾT NỐI VÔ TUYẾN CỰ LY XA, CÔNG SUẤT THẤP LPWANPhối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọĐịnh tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Tìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinSở hữu ruộng đất và kinh tế nông nghiệp châu ôn (lạng sơn) nửa đầu thế kỷ XIXBT Tieng anh 6 UNIT 2Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtchuong 1 tong quan quan tri rui roGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtBÀI HOÀN CHỈNH TỔNG QUAN VỀ MẠNG XÃ HỘIHIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀM