NOVEL APPLICATIONS OF THE UWB TECHNOLOGIES pptx

... QPSK symbol pairs from the main and spread OFDM symbols NOVEL APPLICATIONS OF THE UWB TECHNOLOGIES Edited by Boris I. Lembrikov Novel Applications of the UWB Technologies 16 without ... to the UWB community an adequate review of novel UWB technology applications. We have tried our best in order to provide such a review in the proposed boo...

Ngày tải lên: 19/06/2014, 14:20

... M ) 2 2σ 2  M ∏ i=1 i =n e  − z 2 i 2σ 2  . (19) 42 Novel Applications of the UWB Technologies Novel Applications of the UWB Technologies 28 50 () 1234 () 22 kk gk CSI CSI LLLL Soft b           ... properties of orthogonal pulses and number of users in the system. MAI is the sum of interference of one user from all the other u...

Ngày tải lên: 19/06/2014, 14:20

... Systems Novel Applications of the UWB Technologies 72 this design, the phase changing is merged in the MUX. As shown in Fig.16, the part in the left of the line is a replication of the right ... bandwidth are the main challenges for the design of this up-conversion mixer. The main spurs in the output spectrum of the transmitter are the LO lea...

Ngày tải lên: 19/06/2014, 14:20

... to the name of the Mentor Graphics simulator, ELDO. 82 Novel Applications of the UWB Technologies Novel Applications of the UWB Technologies 102 From the equation (3), we can see that the ... communication purposes and, in the case of IR -UWB for ranging applications, to the estimation of the Time -of- Flight (ToF). The UWB channel is stat...

Ngày tải lên: 19/06/2014, 14:20

... applied in the context of UWB systems, the difficulty of accurate synchronization is accentuated in PPM UWB systems owing to the fact that information is transmitted by the shifts of the pulse ... processing model for a Transmit- reference UWB (TR -UWB) system is given in (Dang et al, 2006). The model considers the Novel Applications of the UWB Technol...

Ngày tải lên: 19/06/2014, 14:20

... dc = Pw/Tp 100 . This means if the duration of pulse increases, the duty cycle decreases and vice versa. Novel Applications of the UWB Technologies 160 themselves to form viable single-hop ... FCC (FCC 2002), UWB technology is not confined to a specific Novel Applications of the UWB Technologies 138 6. Conclusion In this chapter, we have discussed...

Ngày tải lên: 19/06/2014, 14:20

... Where, , () OFDM k xt is kth the OFDM symbol of duration OFDM T , N is the number of transmitted OFDM symbols and k f is the carrier frequency over which the symbol is transmitted. The designed ... used. Novel Applications of the UWB Technologies 190 4.2 MB-OFDM UWB radio over mixed wireless-MMF Channel impairments of MMF fibers are overviewed in Shieh...

Ngày tải lên: 19/06/2014, 14:20

... chapter. 218 Novel Applications of the UWB Technologies UWB Cognitive Radios 7 how UWB radios could be used as secondary radios based on cognitive radio technology for sharing the spectrum with the other ... further consider the coexistence of various spectrum users in the UWB frequency range with the MB-OFDM based UWB radios. In particularly, we discuss the...

Ngày tải lên: 19/06/2014, 14:20

... Novel Applications of the UWB Technologies 252 3.4 The dimension of the co-basis Before proceeding, we need to determine the dimension of the co-basis, M, or equivalently, the number of ... argument of the soft-spectrum mask as given by Eq. (34). The purpose of such normalization is to let the support of the soft-spectrum mask match the suppor...

Ngày tải lên: 19/06/2014, 15:20

... rapidly-changing soft spectrum. The algorithm can be implemented through software defined radio (SDR) techniques. Novel Applications of the UWB Technologies 264 In the environment for the usage of UWB, ... (n.d)). Novel Applications of the UWB Technologies 266 In order to minimize the interference time, the offered traffic of radio system A...

Ngày tải lên: 19/06/2014, 15:20