difference between design development and implementation

... Trang 1DEVELOPMENT AND IMPLEMENTATION OF EFFICIENT SEGMENTATION ALGORITHM FOR THE DESIGN OF ANTENNAS AND ARRAYS ANG IRENE (B Eng (Hons.), NUS) A THESIS ... Simulations and Measurements 108 3.9 CONCLUSION 114 CHAPTER 4 DESIGN OF VARIOUS WIDEBAND PROBE-FED MICROSTRIP PATCH ANTENNAS AND ARRAYS 115 4.1 INTRODUCTION 115 4.2 OVERVIEW OF WIDEBAND PROBE-FED ... applied to the design of broadband probe-fed antennas and arrays Due to the growing demand of modern wireless communication systems, there is a need to enhance the impedance bandwidth of the

Ngày tải lên: 11/09/2015, 09:02

... under investigation occupy the same band, accurate 26 Mobile and Wireless Communications: Physical layer development and implementation and. .. ] J 2 (k   )cos 2 This shows ... ξ= ∑ An exp( jφn ) n =1 (20 ) 30 Mobile and Wireless Communications: Physical layer development and implementation 2 where φn is a randomly distributed phase with the variance ... (K ) (14) 28 Mobile and Wireless Communications: Physical layer development and implementation where Fα (K ) is the threshold for significance level α and K − 1 degrees of freedom

Ngày tải lên: 21/06/2014, 14:20

... layer development and implementation 2 Communication System Design and Testing 2.1 Choosing wireless technologies Many different wireless technologies... 2001 268 Mobile and ... voltage and the duration of the pass. This model can be easily adapted to work with any kind of periodical energy source. MobileandWirelessCommunications:Physicallayerdevelopmentandimplementation256 ... the collected sensor data (Veichtlbauer & Dorfinger, 14 MobileandWirelessCommunications:Physicallayerdevelopmentandimplementation252 2008; Veichtlbauer & Dorfinger, 2009) or the

Ngày tải lên: 21/06/2014, 14:20

... on wideband channels For example, adaptive radio interfaces and cognitive radio will allow efficient spectrum use and smooth handoff between disparate networks Software-defined radio and advanced ... altitude platform stations providing IMT-2000 in the bands 1885-1980 MHz, 2010-2025 MHz and 2110-2170 MHz in the Regions 1 and 3 and 1885-1980 MHz and 2110-2160 MHz in Region 2 International Telecommunications ... altitude platform stations providing IMT-2000 in the bands 1885-1980 MHz, 2010-2025 MHz and 2110-2170 MHz in the Regions 1 and 3 and 1885-1980 MHz and 2110-2160 MHz in Region 2 International Telecommunications

Ngày tải lên: 21/06/2014, 19:20

... is depicted in Figure 7 and without distinction between the ABBA and VBLAST layers 5 Receiver Architectures for Hybrid Space-Time Codes Since schemes ZF-SQRD LSTBC and ZF-SQRD LQOSTBC are equivalent ... ala abba div H / is by block and not by column It is only necessary to Trang 8calculate the odd rows and columns of matrices Qdiv and Rdiv It can be seen as aladiv H and abba div H have the same ... nB do n i min arg :2:2  6: Exchange columns i and i+1 for k and k+1 of Qdiv and Rdiv 7: Exchange columns m  Li :  1 : m  i ( L  1 )  1 and m  Lk :  1 : m  k ( L  1 )  1 of order

Ngày tải lên: 21/06/2014, 19:20

... subblock and phase factor b M ). A sim- ilar technique was also proposed by Jayalath and Tellambura (16). The difference between the Jayalath and Tellambura’s technique and that of Cimini and Sollenberger ... subblock and phase factor b M ). A sim- ilar technique was also proposed by Jayalath and Tellambura (16). The difference between the Jayalath and Tellambura’s technique and that of Cimini and Sollenberger ... (F-EIF-PTS) and normal EIF-PTS... complexities between ordinary PTS and proposed EIT-PTS, W = 4 186 Mobile and Wireless Communications: Physical layer development and implementation

Ngày tải lên: 21/06/2014, 19:20

... where  is a Gaussian random variable with mean m s and variance s for users in soft handoff region and m h and h for users in hard region Due to macro diversity in soft handoff region, users ... distribution, that is:   1010 where  is a Gaussian random variable with mean m s and variance s for users in soft handoff region and m h and h for users in hard region Due to macro diversity ... characteristics such as processing gain (G) and interference margin () Consequently, if Z is modelled as a Gaussian random variable and considering s and h users in the soft and hard regions, respectively,

Ngày tải lên: 21/06/2014, 19:20

... Physical layer development and implementation [20] presented... simulation method 288 Mobile and Wireless Communications: Physical layer development and implementation [32] ... development and implementation [23] Qingwen Liu, Shengli Zhou, Georgios B Giannakis, ‘Queuing with adaptive modulation and coding over wireless links: Cross -layer analysis and design’, ... fading because of the multi-path propagation and abundance interference from others. MobileandWirelessCommunications:Physicallayerdevelopmentandimplementation276 Hence, a channel with

Ngày tải lên: 21/06/2014, 19:20

... Meanwhile the tag antenna should be small in size and easily fabricated In Fig 9, a meandered dipole antenna is designed, and a pair of symmetrical meandered metallic strips surrounded by a rectangular ... impedance and higher Q value is designed and connected to the chip, to ensure the good power transmission The gap of the feeding point is 0.1mm, the width of the metallic meandered strip and the ... impedance can be realized by the meandered dipole, while its high imaginary part can be supplied by the coupling between rectangular loop and symmetrical meandered dipole In this way, a tag antenna

Ngày tải lên: 21/06/2014, 19:20

... guarantees low complexity and low power implementation Many studies on design of UWB transceiver show that UWB technology is a good candidate to achieve low power and low complexity implementation Center ... clock circuitry, and a digital baseband The narrowband receiver receives RF signal and demodulates it into digital signal The power management unit captures the incoming RF signal and rectifies ... amplitude, phase, and position There Trang 2are several modulation options which depend on application, design specifications and constraints, operation rage, transmission and reception power

Ngày tải lên: 21/06/2014, 19:20

... into mainstream supply-chain applications, RFDESIGN, RF and Microwave Technology for Design Engineers, www.rfdesign.com Glidden, R et al (2004) Design of ultra-low-cost UHF RFID tags for supply ... the price and brand of clothes, etc A set of tags attached to items usually carried by a person may allow his identification and tracking There are many countermeasures, which can reduce and even ... security and privacy and the technical countermeasures, but there are also legal, social and economic challenges related to security issues Moreover it is important to bear in mind that security and

Ngày tải lên: 21/06/2014, 19:20

... markets, planning and control is essential for both day to day operations and the development of long-term strategies in order to manage the differences of attitudes, standards and values in the ... choco- late recipe was developed with UK tastes in mind, and both Divine and Dubble were created to a quality standard and designed to compete with major brands. Prices also matched those of equivalent ... able to: ■ Explain and use the SLEPT factors to assess international markets ■ Discuss the differences between export marketing, international and global marketing ■ Understand the criteria required...

Ngày tải lên: 16/03/2014, 09:20

... respirator, monitors, and clinical data from the charts on diagnosis and use of sedatives and hemodynamic treatments. The mismatch between human ability and the vast amount of data and information ... used properly and in a timely manner. Protocols and guidelines have been designed to make mechanical ventilation safer and protective for the lung. However, variable effects and low compliance ... robustness and reliability, and industry to finalize a product that will receive a European Community marking (CE mark) and a U.S. marking (Food and Drug Administration (FDA)) approval. Generation and...

Ngày tải lên: 18/06/2014, 18:20

... contributions SM participated in the design and the development of the device, data analysis and drafted the manuscript, AT and MM supervised the design and the development of the device, JVV coordinated ... among Fugl-Meyer (Hand section), Motor Assessment Scale ("Hand movements" and "Advanced Hand Activities"), Stroke Impact Scale (Hand function) scores and mean value of force ... of Fugl- Meyer (Hand section), Motor Assessment Scale ("Hand movements" and "Advanced Hand Activities" sections), Stroke Impact Scale (Hand function) scores and the mean value...

Ngày tải lên: 19/06/2014, 08:20