based wireless data networks

Ngày tải lên: 19/03/2014, 00:20

... control for wireless data, ” IEEE Personal Communications, vol 7, no 2, pp 48–54, 2000 [7] C U Saraydar, N B Mandayam, and D J Goodman, “Efficient power control via pricing in wireless data networks, ” ... power Conclusions In this paper, the problem of adaptive cross-layer resource allocation in wireless data networks has been considered In particular, adaptive algorithms for distributed energy efficiency ... utility based on the knowledge of its parameters only, that is, assuming total ignorance of the interference background, and based only on readily available measurements such as the received data...

Ngày tải lên: 21/06/2014, 22:20

... in wireless networks, ” IEEE Transactions on Vehicular Technology, vol 55, no 3, pp 839–847, 2006 [5] S Borst, “User-level performance of channel-aware scheduling algorithms in wireless data networks, ” ... initially developed for wireless packet scheduling in the downlink of TDMA systems [9, 11], and was later modified for wireless multimedia services using uplink as well Its concept was based on the leaky-bucket ... incorporate the design and performance requirements of the scheduler in 4G networks into the original scheme In such networks, the utilization of the resources and hence the performance of the...

Ngày tải lên: 21/06/2014, 23:20

... in wireless sensor networks, in Wireless Sensor and Actuator Networks: Algorithms and Protocols for Scalable Coordination and Data Communication (Wiley, 2010) 10 H Sabbineni, K Chakrabarty, Datacollection ... query If the data requested is in the cache of a border node, it sends data back to the sink Replicating data on the border cells can decrease the cost of data look-up and 20 the data delivery ... sinks in wireless sensor networks IEEE Wirel Commun Mag 15(6), 31–37 (2008) A Tuysuz-Erman, P Havinga, Data dissemination of emergency messages in mobile multi-sink wireless sensor networks, ...

Ngày tải lên: 20/06/2014, 20:20

... WSN Wireless Sensor Network WSNs Wireless Sensor Networks XML Extensible Mark-up Language xi ABSTRACT Yu, Qun M.S., Purdue University, August, 2010 Design and Implementation of Web -based Data ... stands for a Wireless Sensor Network, the purpose of this Mode is to quickly cover all possible motes in these four Wireless Sensor Networks if user can select all Wireless Sensor Networks But ... 85 Table C.4 Data Collection ServiceID Definition 85  Table D.1 DataTable H-WSNMS_ServicInfor 86  Table D.2 Datatable H-WSNMS_PlatformState 86  Table D.3 Datatable H-WSNMS_SocketInfor...

Ngày tải lên: 24/08/2014, 10:50

... pending data need to be sent If a node read two new sensor data during one transmission, only the last sensor data will be sent and the first one will be discarded The duration for the last sensor data ... with the coordinator directly The nodes store sensor data temporarily in a data buffer and send the sensor data to the coordinator if the data in buffer is more than a certain value (the payload ... metropolitan area networks- Specific requirements Part 15.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (WPANs),...

Ngày tải lên: 20/06/2014, 22:20

... techniques in wireless sensor networks: a survey,” IEEE Wireless Communications, vol 11, no 6, pp 6–27, 2004 [10] K Akkaya and M Younis, “A survey on routing protocols for wireless sensor networks, ” ... Kulik, W Heinzelman, and H Balakrishnan, “Negotiationbased protocols for disseminating information in wireless sensor networks, ” Wireless Networks, vol 8, no 2-3, pp 169– 185, 2002 EURASIP Journal ... recursive data dissemination protocol for wireless sensor networks, ” Tech Rep UCLA-CSD TR-01-0023, UCLA Computer Science Department, 2001 [21] I Stojmenovic, “Position -based routing in ad hoc networks, ”...

Ngày tải lên: 21/06/2014, 05:20

... tTX = tST + tRX = tST + nDL LDATA nDL + L + tST + ACK (12) R TDATA R TDATA LDATA nDL L n +1 + tST + ACK DL , R TDATA R TDATA (13) LDATA R TDATA (15) In B-MAC, all data in a radio range is received ... tAW PRX (3) The data exchange energy (EDATA ) consists purely of the transmission and reception energies of a data frame (LDATA ) As radio data rate is R, EDATA is EDATA = LDATA (PTX + PRX ) ... (26) LDATA nDL R TDATA TAC = 2TDATA t p + tal 2t p + tal t p PTX /PRX + tal (nDL + 1) nF TDATA nDL + tCW LRTS n + nDL + R TDATA LCTS + LACK R TDATA + tST + tCW − LB R TSYNC LRTS + LDATA nDL...

Ngày tải lên: 21/06/2014, 11:20

... Cayirci, “A survey on sensor networks, ” IEEE Communications Magazine, vol 40, no 8, pp 102–114, 2002 [2] T Kavitha and D Sridharan, “Security vulnerabilities in wireless sensor networks: a survey,” Journal ... schemes in wireless sensor networks, ” Computer Communications, vol 30, no 11-12, pp 2314–2341, 2007 [4] R J Watro, D Kong, S.-F Cuti, C Gardiner, C Lynn, and P Kruus, “TinyPK: securing sensor networks ... Levy, “Lightweight key management in wireless sensor networks by leveraging initial trust,” SDL Technical Report SRI-SDL-04-02, 2004 10 EURASIP Journal on Wireless Communications and Networking...

Ngày tải lên: 21/06/2014, 11:20

... opportunistic wireless sensor networks, ” in Proceedings of the 2nd IFIP Wireless Days (WD ’09), Paris, France, 2009 19 [7] A Vahdat and D Becker, “Epidemic routing for partiallyconnected ad hoc networks, ” ... of two routing protocols: either a pure flooding variant or a historybased protocol The history -based protocol forwards the data to the nearby node with the highest hierarchy level, a simple integer ... Mukherjee, and D Ghosal, Wireless sensor network survey,” Computer Networks, vol 52, no 12, pp 2292–2330, 2008 [2] L Pelusi, A Passarella, and M Conti, “Opportunistic networking: data forwarding in...

Ngày tải lên: 21/06/2014, 11:20

... integrity, and replay protection (aka freshness) of broadcast data in a wireless sensor network Our work in this paper is restricted to single-hop networks There are two reasons for this (i) First, broadcast ... prior work in wireless sensor network broadcast security 2.1 Operating Environment and Threat Model We assume a single-hop wireless sensor network in which a single source of broadcast data, called ... each node securely based on a predistributed symmetric EURASIP Journal on Wireless Communications and Networking Dn−1 D0 k1 k2 D1 Dn−1 k1 k2 kn E k0 Key chain D1 D0 Broadcast data E E ··· kn ···...

Ngày tải lên: 21/06/2014, 11:20

... control for utility-lifetime tradeoff in wireless sensor networks, ” Computer Networks, vol 53, no 18, pp 3031–3041, 2009 [4] Crossbow Technology, “MICA2: Wireless measurement system,” https://www.eol.ucar.edu/rtf/facilities/isa/internal/CrossBow/DataSheets/mica2.pdf ... USA, 1999 [2] I F Akyildiz, W Su, Y Sankarasubramaniam, and E Cayirci, Wireless sensor networks: a survey,” Computer Networks, vol 38, no 4, pp 393–422, 2002 [3] J Chen, S He, Y Sun, P Thulasiramanz, ... Shen, “Seal-healing group key distribution with time-limited user revocation for wireless sensor networks, ” Ad Hoc Networks, Elsevier, vol 5, no 1, pp 14–23, 2007 [9] Y Jiang, C Lin, X Shen, and...

Ngày tải lên: 21/06/2014, 17:20

... and E Cayirci, Wireless sensor networks: a survey,” Computer Networks, vol 38, no 4, pp 393–422, 2002 [2] I F Akyildiz, D Pompili, and T Melodia, “Underwater acoustic sensor networks: research ... wireless sensor networks, ” Elsevier Journal on Computer Networks, vol 45, no 3, pp 245–259, 2004 [11] F Davoli, M Marchese, and M Mongelli, “A decision theoretic approach to Gaussian sensor networks, ” ... S K Jayaweera, “Optimal power scheduling for correlated data fusion in wireless sensor networks via constraint PSO,” IEEE Transaction on Wireless Communications, vol 7, no 9, pp 3608–3618, 2008...

Ngày tải lên: 21/06/2014, 17:20

... DWT are the convolutional based filter bank method and the lifting based filtering method Between the two methods, the lifting based DWT is preferred over the convolutional based DWT for hardware ... Chowdhury, Wireless multimedia sensor networks: a survey,” IEEE Wireless Communications, vol 14, no 6, pp 32–39, 2007 [2] A Mainwaring, J Polastre, R Szewczyk, D Culler, and J Anderson, Wireless ... is ready for the next set of data lines In this paper, a hardware architecture for strip -based image compression using the SPIHT algorithm is presented The lifting -based 5/3 DWT which supports...

Ngày tải lên: 21/06/2014, 20:20

... DP -based policy ε-greedy policy Figure 10: Relay rate comparison between MDP -based policy and ε-greedy MC -based policy Figure 8: Probability of optimal policy at different states for εgreedy -based ... ANC -based network coding scheme for enhancing the data flows across the neighbor clusters The obvious advantage of network coding is that it effectively utilizes the broadcasting nature of wireless ... parallel with the aforementioned ANC -based approach, we pay special attention to the interaction of cognitive wireless user (i.e., gateway node) with its local wireless environment via a learning...

Ngày tải lên: 21/06/2014, 20:20

... system is based on the conventional FH techniques, the spectral efficiency is seriously limited by the collision effect Along with the ever increasing demand on inherently secure high datarate wireless ... each user is mapped to symbols based on a selected constellation The constellation could be different for different users based on the channel condition and user datarate [19, 20] Assume the base ... system based on the OFDMA framework and an innovative secure subcarrier assignment scheme The secure subcarrier assignment is achieved through an advanced encryption standard (AES) [13] based...

Ngày tải lên: 21/06/2014, 20:20

... identifies directions for future work HOP-COUNT -BASED POSITIONING SYSTEMS The use of topological or hop-count -based localization methods in wireless sensor networks is advantageous because Farid Benbadis ... selforganizing networks, ” IEEE Wireless Communications, vol 13, no 6, pp 98–104, 2006 [3] M D de Amorim, F Benbadis, M L Sichitiu, A C Viana, and Y Viniotis, “Routing in Wireless Self-Organizing Networks, ” ... position -based routing in mobile ad hoc networks, ” IEEE Network, vol 15, no 6, pp 30–39, 2001 [5] S Giordano, I Stojmenovic, and L Blazevie, “Position based routing algorithms for ad hoc networks: ...

Ngày tải lên: 22/06/2014, 00:20

... next-generation wireless packet networks, ” IEEE Wireless Communications, vol 9, no 3, pp 58–64, 2002 [11] Y Li and N Bambos, “Power-controlled media streaming in the interference-limited wireless networks, ” ... diversity in wireless relaying channels,” IEEE Transactions on Communications, vol 52, no 10, pp 1820–1830, 2004 [2] S Gitzenis and N Bambos, “Power-controlled packet relays in wireless data networks, ” ... Transactions on Wireless Communications, vol 2, no 6, pp 1126–1131, 2003 [4] J N Laneman and G W Wornell, “Energy-efficient antenna sharing and relaying for wireless networks, ” in IEEE Wireless Communications...

Ngày tải lên: 22/06/2014, 19:20

... optimal transforming-level -based algorithm for compressing spatial and temporal correlated data is detailed Border effect in sensor networks We assume that sensory data collected are stored in ... reconstruction of sensory data 2.2 Ring topology based on virtual grid Below, we describe a ring topology based on virtual grid As we will illustrate later, ring-topology -based WT can eliminate ... we have Bk−1 − Bk = f (data, wavelet) (14) Since most of energy consumption is data transmission and most of delay factor is in the transmission time for wireless sensor networks, we measure energy...

Ngày tải lên: 22/06/2014, 19:20

... receives data frames from its cluster members, it will perform data aggregation to remove the redundancy in the data After aggregating received data frames, the cluster head will forward the data ... transmissions in wireless sensor networks, ” IEEE Signal Processing Letters, vol 12, no 2, pp 134–137, 2005 [5] S K Jayaweera, “Energy analysis of MIMO techniques in wireless sensor networks, ” in ... 2004 and 2005 His current research interests include wireless sensor network, wireless ad hoc network, and video transmission over wireless networks Taekyoung Kwon is an Assistant Professor in...

Ngày tải lên: 22/06/2014, 22:20