visible light wireless communications and its fundamental study

Ngày tải lên: 26/10/2013, 16:43

... the ISM band. 14. TL model for meander antennas Commercial and military mobile wireless systems demand for high compactness devices. An important component of any wireless system is its antenna. ... Wave Antenna for Wireless Communications 47 Onofrio Losito and Vincenzo Dimiccoli Chapter 4 Superstrate Antennas for Wide Bandwidth and High Efficiency for 60 GHz Indoor Communications 93 ... discovers throughput and receiving sensitivity of wireless communications and the solutions to improve system performance. Moreover, this chapter describes how to design and implement periodic...

Ngày tải lên: 31/03/2014, 22:20

... acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. MAC and baseband processors for RF-MIMO WLAN EURASIP Journal on Wireless Communications and Networking 2011, 2011:207 ... broker between MAC and PHY, sets and reads the PHY parameters, controls the timers for handshake of the MIPP interface and stores the received data from PHY after any set/write command from MAC. ... MAC and PHY layers called MIPP interface [14]. This parallel port interface is a combination of a 16-bit parallel bidirectional data bus and some control and handshake signals. The baseband...

Ngày tải lên: 18/06/2014, 22:20

... (29) RECENT ADVANCES IN WIRELESS COMMUNICATIONS AND NETWORKS Edited by Jia-Chin Lin A Study of Cramér-Rao-Like Bounds and Their Applications to Wireless Communications 5 Here, ... Preface IX Part 1 Physcial and MAC Layers 1 Chapter 1 A Study of Cramér-Rao-Like Bounds and Their Applications to Wireless Communications 3 Kao-Peng Chou and Jia-Chin Lin Chapter 2 Synchronization ... serving as a forum in which both academia and industry can share experiences and report original studies and works regarding all aspects of wireless communications. In addition, this book has...

Ngày tải lên: 19/06/2014, 19:20

... 0,1,…,1 (4) Recent Advances in Wireless Communications and Networks 34 random variable, ( ) 00 Ag ε = and ( ) 11 Ag ε = . Therefore, the two derived random variables 0 A and 1 A are first set ... technologies have recently been chosen as candidates for fourth-generation (4G) mobile communications in a variety of standards, such as 802.16m and LTE/LTE-A. 2. OFDM fundamentals 2.1 System descriptions ... may lie in the same or different band and may have different bandwidths. Carrier aggregation provides diverse combinations and flexible spectrum usability and has attracted attention. Carrier...

Ngày tải lên: 19/06/2014, 19:20

... Advances in Wireless Communications and Networks 66 the receive antenna, the received signals across two consecutive symbol periods, which are denoted by 1 r and 2 r for time t and tT + , ... Furthermore, more and more wireless communication systems are now equipped with multiple transmit and receive antennas, and therefore it is desired to simultaneously obtain transmit and receive diversity ... ( ) () bits sec Hz sc b s rm R r km Br p η == (35) where b r and s r are the bit and symbol rate of a space-time coded symbol, respectively, and B represents the total bandwidth. For...

Ngày tải lên: 19/06/2014, 19:20

... rank  G min g,c  =  QN R SDM QN T N R STBC/CDD. (53) 108 Recent Advances in Wireless Communications and Networks Recent Advances in Wireless Communications and Networks 94 Wolniansky, P. W., Foschini, G. J., ... N)P(D g,c , g,c , g,c ), (39) 104 Recent Advances in Wireless Communications and Networks Recent Advances in Wireless Communications and Networks 88 4.2 Conventional beamforming A conventional ... Recent Advances in Wireless Communications and Networks 86 4.1 Linear array and signal model Fig. 16 depicts a linear array with L omni-directional and equi-spaced antennas, and the antenna...

Ngày tải lên: 19/06/2014, 19:20

... principal multiple access schemes for broadband wireless multiuser systems. It has being proposed for use in several broadband multiuser wireless standards like IEEE 802.20 (MBWA: http://grouper.ieee.org/groups/802/20/), ... CDMA in indoor wireless radio networks, Proc. IEEE Int. Symp. on Pers., Indoor and Mob. Rad. Comm., Yokohama (Japan), pp. 109–113. 116 Recent Advances in Wireless Communications and Networks ... superior performance of STBC can be explained by the fact that it exploits transmit and receive 112 Recent Advances in Wireless Communications and Networks 10 Will-be-set-by-IN-TECH Fig. 6. Rate regions...

Ngày tải lên: 19/06/2014, 19:20

... Wireless Communications Physical layer development and implementatiom, InTech Publishing, chapter Wireless Communications and Multitaper Analysis: Applications to Channel Modelling and Estimation. Haykin, S. (2005). ... Throughput analysis and optimization of sensing-based cognitive radio systems with markovian traffic, 59(8): 4163–4169. Haghighi, S. J., Primak, S., Kontorovich, V. & Sejdic, E. (2010). Mobile and Wireless Communications ... 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 threshold A and B, hence the the random...

Ngày tải lên: 19/06/2014, 19:20

... Advances in Wireless Communications and Networks 192 2.2 Vertical handoff In integrated networks, there are two types of handoff: intra-technology handoff and inter- technology handoff (Lampropoulos ... Integrated Wireless LAN and 3G Cellular Networks 193 integrated WLAN and 3G cellular networks, seamless vertical handoffs and call admission control must be considered as dependent and joint ... tightly interacts with vertical handoff and QoS provisioning schemes in integrated WLAN and 3G cellular networks. Recent Advances in Wireless Communications and Networks 172 example the...

Ngày tải lên: 19/06/2014, 19:20

... & Candidate Network. 9. MIH_MN_Candidate_Commit Responset CurrentLinkType = 3G OldLinkAction = HANDOVER_CANCEL HandoverStatus = 0 (Abort Handover) Fig. 2. MN-initiated and MN-cancelled ... Handover) Fig. 2. MN-initiated and MN-cancelled handover Recent Advances in Wireless Communications and Networks 202 prabability and handoff dropping probability. To reduce the complexity, ... 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 n λ and 1/ n μ denote...

Ngày tải lên: 19/06/2014, 19:20

... between HTTP requests and Recent Advances in Wireless Communications and Networks 248 Shutdown. SCTP shutdown procedure uses three messages: shutdown, shutdown ack, and shutdown complete. ... paths available and there are five streams, then the first path only transmits packets from the first stream, the second path only transmits packets from streams two and three, and the third ... fourth-generation multinetwork environments, IEEE Wireless Communications, Vol. 11, Issue 3, pp. 8–15, June, 2004. Recent Advances in Wireless Communications and Networks 238 location-based (ELB)...

Ngày tải lên: 19/06/2014, 19:20

... (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 ... Proceedings Symposia and Workshops on Ubiquitous, Autonomic and Trusted Computing, pp. 330-335. Recent Advances in Wireless Communications and Networks 262 but it consumes less bandwidth. Table ... (56) 284 Recent Advances in Wireless Communications and Networks Traffic Control for Composite Wireless Access Route of IEEE802.11/16 Links 15 Similar to downlink, R ul.UGS and A ul.UGS are independent...

Ngày tải lên: 19/06/2014, 19:20

... proposal decreases rapidly, and becomes much lower than that of the 290 Recent Advances in Wireless Communications and Networks Recent Advances in Wireless Communications and Networks 316 to ... Composite Wireless Access Route of IEEE802.11/16 Links Recent Advances in Wireless Communications and Networks 306 8. Resource constraint nature of wireless sensor networks Wireless Sensor ... monitoring patents and elderly people, asset and warehouse management, building monitoring and control, fleet monitoring, military battlefield awareness and surveillance, security and surveillance,...

Ngày tải lên: 19/06/2014, 19:20

... figure 9. Fig. 9. Standard adaptation as function of the video compression 340 Recent Advances in Wireless Communications and Networks Recent Advances in Wireless Communications and Networks ... and Mobile WiMAX (IEEE 802.16e), opens the road to 4G technologies. The standard is focused on delivering high data rates for bandwidth-demanding applications and on improving flexibility and ... Wireless Communications and Networks Recent Advances in Wireless Communications and Networks 346 Fig. 1. LTE Architecture and functional split between E-UTRAN and EPC LTE provides service...

Ngày tải lên: 19/06/2014, 19:20

... image width and height proportionally. After all RDQL query results are handled, the resulting web content would be returned to the client. Recent Advances in Wireless Communications and Networks ... heuristics and rules. The benefits of heuristics-controlled parameter selection are easy to be implemented in programs and faster response time. It drawbacks include less number of handled cases, and ... browsing latency, and reducing wireless bandwidth consumption. Hsiao et al. (2008) proposed the architecture of versatile transcoding proxy (VTP). The VTP architecture can accept and execute the...

Ngày tải lên: 19/06/2014, 19:20

Ngày tải lên: 19/06/2014, 19:20

Ngày tải lên: 19/06/2014, 19:20

Ngày tải lên: 19/06/2014, 19:20