MOB TME Subject 1 – Signal Transmission

... Voltage ratio32 1. 416 4 210 103 ,16 Master of Computer Science 1 - MOB Mobile Internet4 /13 Baey, Fladenmuller – Subject 12 010 0 10 30 10 00 31, 64 010 00 010 0x10(x /10 )10 (x/20)4. What does a ratio of 16 between ... Master of Computer Science 1 - MOB Mobile InternetBaey, Fladenmuller – Subject 11 /1 3MOB TME Subject 1 – Signal TransmissionSIGNAL A...

Ngày tải lên: 17/09/2012, 09:13

... 1MOB TME - Other aspects of wirelessThe layer transport - Bluetooth - Wifi Security1. TCP and wireless environments1. Remind the operation principle of ... called scatternet. The figure 1 shows anexample of network topology where a scatternet constituted from two piconets is represented.Fig .1 –Example of network topology .1. Why the Bluetooth range ... cells at the same time ?12 . Blue...

Ngày tải lên: 17/09/2012, 09:13

... 1. Signal Transduction 1. 1 Integration of Metabolism and Survival S1 .1- 1 Regulation of metabolism by estrogen signaling J. Gustafsson, R. Rodrigo and W. Warner Department of BioSciences ... ArKO mice and lower in ERb –/ – and ERa –/ – mice than in WT littermates. GLUT4 and caveolin -1 were colocalized in WT and ArKO mice, but not in ERb –/ – and ERa –/ – mice. Thus...

Ngày tải lên: 19/02/2014, 07:20

... 5 ,10 12 611 260BCbCBNE12. Express the spectral effiency in Exercise 11 in dB unit?We have: 10 log10(η) = 10 log106 = 7,7 813 . Express the Eb/N0in Exercise 11 in dB unit?We get: 10 log10(Eb/N0) = 10 log10 (10 ,5)  10 , 21 ... Surrounding6 /18 on such a channel?We get: 10 log10(S/N) = 35 dB  S/N = 316 2And C = B log2 (1 +NS) = 4,5 × 10 6 × log2 (1 + 316 2) = 52.3 2...

Ngày tải lên: 17/09/2012, 09:13

... log10 (d) = EIRP – 10 0 + Gr – Margin – Sensitivity⇒ d = 10 ^ (EIRP – 10 0 10 – Margin – Sensitivity)/20where Margin = 0We get d = 10 ^ (20 - 11 0 – Sensitivity)/20⇒ d = 10 ^ (– 90 – Sensitivity) ... get:2 010 010 --Margin-Lr-GrysensitivitEIRP2 010 310 4,2420log-Margin-Lr-GrysensitivitEIRP5 910 2 010 310 4,2420log-Margin-Lr-GrysensitivitEIRP1 010 10 01...

Ngày tải lên: 17/09/2012, 09:13

... 1 .S  B = ( -1 +1 -3 +1 -1 -3 +1 +1)  ( -1 -1 +1 -1 +1 +1 +1 -1) = (1 – 1 – 3 – 1 – 1 – 3 + 1 1) /8 = -1, so B sent bit “0”.S  C = ( -1 +1 -3 +1 -1 -3 +1 +1)  ( -1 +1 -1 +1 +1 +1 -1 -1) = (1 ... x 1 + 1 x 1 + 1 x( -1) + ( -1) x ( -1) + ( -1) x ( -1) + ( -1) x 1] /11 = [( -1) + ( -1) + 1 + ( -1) + ( -1) + 1 + 1 + ( -1) +...

Ngày tải lên: 17/09/2012, 09:13

... equation (1) . What do these values of Kcorrespond to?i j K1 0 11 1 32 0 42 1 73 0 92 2 12 3 1 134 0 16 3 2 19 4 1 215 0 25The first K values are: 1, 3, 4, 7, 9, 12 , 13 , 16 , 19 , 21, 25, ... These ... Science 1 - MOB Mobile Internet and Surrounding1 /12 Baey, Fladenmuller – Subject 5MOB Subject 5 –Access methodsStatic and dynamic access techniques1. ... Comp...

Ngày tải lên: 17/09/2012, 09:13

... families of protocol802 .11 ?The data modulation: BPSK to 802 .11 , CCK (Complementary Code Keying) for 802 .11 b andOFDM for 802 .11 a and 802 .11 g. Master of Computer Science 1 - MOB ... Science 1 - MOB Mobile Internet and SurroundingFladenmuller Baey - ”IEEE 802 .11 standards” 1/ 8MOB Subject 6 - IEEE 802 .11 standardsWifi operation1. ... of transmission cards802 .11 a an...

Ngày tải lên: 17/09/2012, 09:13

... p(i) = qi – 1( 1 – q)The average number of transmissions necessary to succeed a correct transmission is writtenso:] )1( 1 [11 11) 1 (1) 1( )1( )(8 211 niipqqqiqqqiqiipN   019 1 ,1) 1 (18 np3. ... retransmission)+ (1 – p) p (TtotalData+ 13 138) (1 retransmission)+ (1 – p) p2 (2TtotalData + 13 138) (2 retransmission)+ ...= 13 138 + 12 904 p by neg...

Ngày tải lên: 17/09/2012, 09:13

... 1MOB Subject 8 - WiFi PracticalTraces Analyzes1. Configuration of a WiFi cardYou will have to find the answers for these questions while searching on the Web .1. What are two ... traces has to analyze are to download from the folder:/Infos/lmd/2004/master/ue /mob2 005fev/Traces_sujet4/.Trace 11 . Which information can you obtain from this trace on the architecture (MAC Addressand ... of I...

Ngày tải lên: 17/09/2012, 09:13