vijay garg wireless communications and networking ebook

... Fully formattedPDF and full text (HTML) versions will be made available soon. An overview of learning mechanisms for cognitive systems EURASIP Journal on Wireless Communications and Networking 2012, ... in IEEE 802.11 wireless networks based on the experimental measurements and the environmental conditions, and eventually selects the optional channel Finally, Bayesian statistics and self-organizing ... Learning mechanisms also provide the ground for enabling proactive handling of problematic situations, i.e identifying and handling issues that could undermine the performance of the system before

Ngày tải lên: 20/06/2014, 20:20

... the widespread deployment of high data rate wireless networks and the improvements in video compression technologies, the popularity of and demand for wireless mul-timedia transmission have been ... Communications, vol 6, no 4, pp 13–18, 1999 [3] H Schwarz, D Marpe, and T Wiegand, “Overview of the scalable video coding extension of the H.264/AVC standard,” IEEE Transactions on Circuits and ... vol 17, no 10, pp 1747–1758, 1999 [15] R M Jeffrey, G Andrews, and A Ghosh, Fundamentals of WiMAX: Understanding Broadband Wireless Networking, Prentice Hall, New York, NY, USA, 1st edition, 2007

Ngày tải lên: 21/06/2014, 05:20

... Rx and Tx, respectively By choice, the intercluster parameters pc, φ A c, and τc are parametersac,k,φ A c,k,φ D c,k, andτc,k The matrices BRx, W, and BTxare built from submatrices BRx c , Wc, and ... measured location of the Tx and Rx The calibration of the network analyzer is done at the connectors of the Tx and Rx antenna and as such includes both the RF/optical link and the amplifier Measurements ... which stretches horizontally top and bottom in the figure All inner walls are plasterboard, except for the concrete walls between rooms 118 and 120, and of the Tx and Rx during measurements A total

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... wireless networks because of the error-prone nature of wireless media and random access techniques commonly used in wireless protocols In wireless networks, an access method based on channel reservation ... J0) we estimate PLR and throughput for every recipient by (12), (14) and (17) and check if QoS requirements (1) and (2) are met In this way we form an admitted region ofT, B and J. InFigure 5, ... MANs is centralized as a whole; in the IEEE 802.11 [2] and 802.15.3 [3] MACs for wireless LANs and PANs, the AP controls access to the channel and can provide collision-free operation periodically

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... open loop MIMO and closed loop for SU and MU MIMO schemes versus the number of active users in the cell Both the simulation results and the analytical results for the open loop and the linearly ... MIMO-OFDMA based downlink transmission Both open loop and closed loop MIMO (open loop and closed loop MIMO correspond to the MIMO systems without and with channel state information at the 3GPP LTE ... LTE However, the closed loop solution provides both diversity and array gains, and hence a superior performance Due to its simplicity and robust performance, the use of linear precoding has been

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... Choi, and T Keller, OFDM and MC-CDMA for Broadband Multiuser Communications, WLANs and Broadcasting, IEEE Press-John Wiley & Sons, New York, NY, USA, 2003 [2] L Hanzo and T Keller, An OFDM and ... iterations then employed bee abandons that food source, and it becomes a scout and search for a new food source randomly This assigns a random food source to this scout, and it becomes employed After ... L Martins and C C Ribeiro, “Metaheuristics and appli-cations to optimization problems in telecommuniappli-cations,” in Handbook of Optimization in Telecommunications, M G C. Resende and P M Pardalos,

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... uses a low-power, low bandwidth, and long-range link, and it is always active to allow node discovery The data plane uses high-power, high bandwidth, and short-range link, and it is only active ... prototyped hardware and software embedded into robotic cards, desktop, and netbooks computers The proposed prototype is demonstrated and evaluated with Epidemic, and Spray, and Wait routing protocols, ... protocols (e.g., First Contact [47], Epidemic [48], Source and Binary Spray and Wait [49]), and scheduling and dropping policies (e.g., FIFO, LIFO, random, lifetime-based, replicated-copies) They also

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... for Broadband Wireless Communications, John Wiley, ISBN 978-0-471-21479-3, New Jersey, USA Godara, L C (1997) Application of Antenna Arrays to Mobile Communications II Beam-Forming and Direction-of-Arrival ... Foschini, G J & Gans, M J (1998) On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas Wireless Personal Communications, Vol.6, No.3, (March 1998), pp.311-335, ... Transmission IEEE Transactions on Communications, Vol 47, No 10, (Oct 1999), pp.1458-1461, ISSN 0090-6778 Rappaport, T S (2002) Wireless Communications: Principles and Practice (2nd Edition), Prentice

Ngày tải lên: 19/06/2014, 19:20

... the random variable m stands for the required number of samples needed to terminate the test As stated in Wald (2004) it is possible to neglect the excess on thresholdAandB,hence the the random ... the modulation type and order, the pulse shapeand the packet format So that, if this information is not accurate, then the matched filterperforms poorly However, since most wireless networks systems ... real environment and its variation, while it is shown inmany publications and realistic measurements that such environments change frequently,especially in highly build areas Understanding how particular

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... t, and Hb k l, , of size N r k×N t b represents the channel between user k and BS , b b=1, ,B on subcarrier l The channel H H , where ρb k, represents the long-term power gain between BS b and ... r, , 1 k 1 and the power loading coefficient is computed only per user and subcarrier In this case to compute the power allocation coefficients we should replace λk i l, , by αk l, and remove ... Cent per-BS SOIPA and Cent per-BS OPA are still very close but both are degraded from Cent TPC OPA (about 0.5dB at BER=10-3) and also there is 0.5dB gap among these curves and Cent per-BS SOCPA

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... for both new calls and vertical handoff follows Poisson distributions, and the channel holding time for both vertical handoffs and new calls are exponentially distributed Let λn and 1 /μndenote ... 4prabability and handoff dropping probability To reduce the complexity, we focus on voice services in the integrated WLAN and 3G UMTS cellular networks, with fixed total channels in UMTS cell and bandwidth ... ≤ + ≤m n C}, where m and n are the numbers of admitted new calls and admitted vertical handoffs in the cell, respectively The traffic intensity of vertical handoffs ωv and traffic intensity

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... handovers in fourth-generation multinetwork environments, IEEE Wireless Communications, Vol 11, Issue 3, pp 8–15, June, 2004 244 Recent Advances in Wireless Communications and ... Vertical Handover Decision Metric for QoS Enhancement in Next Generation Networks, Proceedings of IEEE International Conference on Wireless and Mobile Computing, Networking and Communications ... in Wireless Communications and Networks 234 The mobile node’s location information is used to initiate handovers, that is, when the distance of the MN from the centre of the cell of the candidate

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... (2005) IEEE Standard for Local and metropolitan area networks Part 16: Air interface for fixed broadband wireless access systems IEEE Std 802.21-2008 (2008) IEEE Standard for Local and metropolitan ... IEEE Wireless Communications and Networking Conference WCNC’07, pp 2969-2974 Shaojian, F., Atiquzzaman, M., & Ivancic, W (2005) Evaluation of SCTP for space networks IEEE Wireless Communications, ... Trang 4Recent Advances in Wireless Communications and Networks 262 but it consumes less bandwidth Table 7 includes the average times for a multiple-file transmission and the corresponding confidence

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... Meter Trang 13Wireless Sensor Network: At a Glance 301 Trang 14Recent Advances in Wireless Communications and Networks Trang 15Wireless Sensor Network: At a Glance 303 Wireless Sensor Networks ... survey related to wireless sensor nodes (Tatiana), except this a comprehensive listing of existing wireless sensor nodes is presented Trang 12Recent Advances in Wireless Communications and Networks ... Figures 11(a), 11(b) and 11(c) show, respectively, the transition of distributed load to11a-wireless system (11a-load), that to 11b-wireless system (11b-load) and that to 16-wirelesssystem (16-load),

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... Scenario: Prospects and Challenges, Proceedings of National Conference on Wireless Communication and Networking (WINCON), pp 138-148 Trang 8Recent Advances in Wireless Communications and Networks ... J.N and Kamal, A.E (2004) Routing Techniques in Wireles Sensor Networks: A Survey, IEEE Wireless Communications (J), pp 06-28 Karl, H and Willig, A (2006) Protocols and Architectures for Wireless ... for WSNs Trang 3Wireless Sensor Network: At a Glance 321 Trang 4Recent Advances in Wireless Communications and Networks 322 Fig 4 Security threats and their usual defenses in Wireless Sensor

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... of VoIP and non-VoIP connections is represented by r and s, respectively Additionally, BW T and BW R represent the overall and the reserved bandwidth, while BW and 1 BW represent the bandwidth ... index i corresponds to different service types and can take values 1 and 2 for VoIP and non-VoIP traffic, respectively In case that the system bandwidth suffices to serve the flows of all service ... Poutmin and Poutmax, depending on the available system bandwidth In the extreme case that we have no available bandwidth, the overall outage probability becomes Poutmax Adversely, when the total bandwidth

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... terminals, PDAs, Ebook readers and the like are typical examples of wireless systems directly connected to the power source 3.1.2 Voltage and current adapter If the voltage and current levels ... source and the wireless systems is only a matter of electromagnetic compatibility standards, electrostatic discharges and security regulation 3.2 Systems, component and devices for wireless power ... to the consumption patterns of wireless systems, but the power source itself conditions the architecture of both wireless device and power supply Consequently, wireless systems are sorted in

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... 2 and 6 Table 2 shows examples of measured n and σ values in different buildings for 914 MHz signals (Rappaport and Sandhu 1994) A link budget analysis can be used to estimate the range of wireless ... modules, and wireless sensing units (Fig 4) The server is used to organize and collect data from multiple wireless sensing units in the sensor network The server is responsible for: 1) commanding ... the server and the wireless sensing units must communicate frequently with each other, portions of their software are designed in tandem to allow seamless integration and coordination Wireless

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... utilizing natural energies such as up-and-down motions of waves, slowly flowing river water, human and animal movements, and vibration energies produced from vehicles and buildings 4.1 Principal of ... cycle of stretching and contraction is Trang 6where C 1 and C 2 are the total capacitances of the dielectric elastomer films in the stretched and contracted states, respectively, and V b is the ... short period of time and in the basic circuit Since V = Q/C, the voltages in the stretched state and the contracted state can be expressed as V 1 and V 2, respectively, and the following equation

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... distance and a maximum wireless radio coverage, assuming an ideal wireless technol- ogy (no packet losses nor collisions and infinite band- width). Although the simulator does not consider a real wireless ... aware vehic- ular architecture standardized by ETSI, commonly referred to as geonetworking, and then describes in detail how IPv6 datagram transmission and standard IPv6 stateless address autoconfiguration ... framework for wireless ad hoc network for the OMNeT++ simulator. o It provides the 802.11 MAC layer and many physical layer models (including the widely accepted path- loss, shadowing and large- and small-scale...

Ngày tải lên: 20/06/2014, 20:20