Application level quality of service and information quality provisioning in sensor networks

... case of sensor networks In databases, the information is stored somewhere and the problem of handing information translates to a problem of searching and fetching the necessary information In the ... Information Quality Chapter Quality of Information The main goal of operation of sensor networks is collection of information about events and phe...

Ngày tải lên: 11/09/2015, 14:22

... Efficient integration of secure and safety critical industrial wireless sensor networks EURASIP Journal on Wireless Communications and Networking 2011 2011:100 Submit your manuscript to a journal and ... using existing automation equipment and standards, addressing safety and security, using Profinet IO, Profisafe, and WirelessHART In order to retrofit securi...

Ngày tải lên: 20/06/2014, 22:20

... throughput The effect of MAC for information retrieval on information processing is analyzed in [7, 8] for in nite and finite sensor density networks, respectively, where the performance of the centralized ... bandwidth required for sensors reporting their locations is prohibitively Here, m − points are sought instead of m points in the linear field case MAC for Optima...

Ngày tải lên: 23/06/2014, 00:20

... QPSK 1/ 2 5.82 5.65 5.33 4.80 QPSK 3/4 8.73 8.47 8.00 7.20 16 -QAM 1/ 2 11 .64 11 .29 10 .67 9.60 16 -QAM 3/4 64-QAM 2/3 64-QAM 3/4 17 .45 16 .94 16 .00 14 .40 23.27 22.59 21. 33 19 .20 26 .18 25. 41 24.00 21. 60 ... orders@intechweb.org Quality of Service and Resource Allocation in WiMAX, Edited by Roberto C Hincapie and Javier E Sierra p cm 978-953-307-956 -1 ...

Ngày tải lên: 21/06/2014, 05:20

... WiMAX physical layer standard OFDM_BPSK_1_2 in our simulations [24] 100 Quality of Service and Resource Allocation in WiMAX UGS 350 0 3000 Throughput 250 0 2000 150 0 1000 50 0 300 800 1400 1900 2400 ... for the remaining users under high SINR assumption 114 Quality of Service and Resource Allocation in WiMAX Will-be-set-by -IN- TECH 10 3) Power minimization wi...

Ngày tải lên: 21/06/2014, 05:20

... pseudorandomly, thereby resulting in interference averaging as explained in Byeong Gi Lee & Sunghyun Choi (2008) 118 Quality of Service and Resource Allocation in WiMAX Will-be-set-by -IN- TECH ... Fundamentals of resource allocation in wireless c networks: Theory and algorithms, Springer Thanabalasingham, T., Hanly, S V., Andrew, L L H & Papandriopoulos, J (20 06)...

Ngày tải lên: 21/06/2014, 05:20

... left to the choice of the provider State of the art 3.1 Bandwidth sharing strategies: background To maintain a quality of service required by the constraining and restricting services, there are ... to C and types of service class (class and 2) If class (i.e aggreagted calls) uses I units then 154 Quality of Service and Resource Allocation in WiMAX Will-be-se...

Ngày tải lên: 21/06/2014, 05:20

... structure defined in the IEEE 80 2.16 standard for TDD in PMP mode is shown in Fig Each frame has a duration of Δ and is divided into uplink and downlink subframes At the beginning of a downlink subframe, ... presents the details of Block B of Fig 2, which calculates the mean service time of REQs  182 Quality of Service and Resource Allocation in WiMAX Wil...

Ngày tải lên: 21/06/2014, 05:20

... uplink channel and the UL-MAP contains the physical specifications and also the time allocation of 202 Quality of Service and Resource Allocation in WiMAX resources After the downlink and uplink ... piece of information coded in 16 bits A connection is a unidirectional mapping between a BS and a 198 Quality of Service and Resource Allocation in WiMA...

Ngày tải lên: 21/06/2014, 05:20

... process of estimating resources for four frames 226 Quality of Service and Resource Allocation in WiMAX Value of guard channel (threshold) is adjusted based on the value of the declared Minimum ... throughput for DV and CTC – Map1 Fig Bandwidth utilization for DV and CTC – Map 231 232 Quality of Service and Resource Allocation in WiMAX Fig Blocking probab...

Ngày tải lên: 21/06/2014, 05:20

... which included streaming video over MAC layer service connections It is shown that the technique allows 9-16% increase in 260 Quality of Service and Resource Allocation in WiMAX overall network bandwidth ... operating layer is able to classify the incoming SDU by addressing to cross-layer table for inserting the correct information in the defined header field to inform low...

Ngày tải lên: 21/06/2014, 05:20

... it 274 Quality of Service and Resource Allocation in WiMAX One of the drivers of WiMAX’s development is its suitability (because of centralized scheduling using TDD) for video streaming Video ... overflow, routing (in ad hoc and mesh networks), and resource management In WiMAX multicast mode, scheduling decisions for the real-time Polling Service (rtPS) queue,...

Ngày tải lên: 21/06/2014, 05:20

... operating conditions, and interleaving lengths 314 Quality of Service and Resource Allocation in WiMAX Fig 5.2 Architecture of the degrading concealment interleaving system Combining interleaving ... which interleavers are active in the interleaving path and thus the aggregate interleaving length at any time, a memory for storing information during interleaving and ma...

Ngày tải lên: 21/06/2014, 05:20