MOB Subject 3 Transmission Techniques

... Computer Science 1 - MOB Mobile Internet and Surrounding1/1 8MOB Subject 3Transmission Techniques1 . Signal transmission techniques - PracticalThe ... 32  2n = 32  n = 5. On other hand: One pixel needs 5 bit.Bits of an image = 480 × 640 × 5 = 1 536 000 bit/imageThe speed is 25 images per second, so we get 25 × 1 536 000 = 38 .400.000 bit/s = 38 ,4 ... Mobile Internet and Su...

Ngày tải lên: 17/09/2012, 09:13

... log2(1 + SNR) = 56  1 03 / log2(1 + 0,01) = 3. 901.000Hz 3, 9 MHzCase 3: SNR = 0,001C = B log2(1 + SNR)  B = C / log2(1 + SNR) = 56  1 03 / log2(1 + 0,001) = 38 . 835 .647Hz 38 , 835 MHzb) In a ordinary ... -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) =...

Ngày tải lên: 17/09/2012, 09:13

... these values of Kcorrespond to?i j K1 0 11 1 32 0 42 1 73 0 92 2 1 23 1 134 0 1 63 2 194 1 215 0 25The first K values are: 1, 3, 4, 7, 9, 12, 13, 16, 19, 21, 25, ... These values correspondto ... Science 1 - MOB Mobile Internet and Surrounding1/12 Baey, Fladenmuller – Subject 5MOB Subject 5 –Access methodsStatic and dynamic access techniques1 . ... for K = 19. Master of Compute...

Ngày tải lên: 17/09/2012, 09:13

... Master of Computer Science 1 - MOB Mobile Computing1/4 Baey, Fladenmuller – Subject 2MOB Subject 2 – "Link budget " practicalWhat is the maximum propagation ... Science 1 - MOB Mobile Computing2/4 Baey, Fladenmuller – Subject 2Output power of the amplifier: 20 dBm Antenna Gain: 0 dBiWe get:2010010--Margin-Lr-GrysensitivitEIRP201 031 04,2420log-Margin-Lr-GrysensitivitEIRP5...

Ngày tải lên: 17/09/2012, 09:13

... Master of Computer Science 1 - MOB Mobile Internet and SurroundingFladenmuller Baey - ”IEEE 802.11standards” 1/ 8MOB Subject 6 - IEEE 802.11 standardsWifi ... Science 1 - MOB Mobile Internet and SurroundingFladenmuller Baey - ”IEEE 802.11standards” 3/ 8 The energy consumption and battery life: Mobile ... has 8 disjoint bands inthe U.S. (200 MHz) and 13 in Europe, against 3 dis...

Ngày tải lên: 17/09/2012, 09:13

... (TtotalData+ 131 38) (1 retransmission)+ (1 – p) p2 (2TtotalData + 131 38) (2 retransmission)+ ...= 131 38 + 12904 p by neglecting the terms p2. With RTS/CTS:T’(µs) = (1 – p) 138 14 (no retransmission)+ ... (TtotalData+ 138 14) (1 retransmission)+ (1 – p) p2 (2TtotalData + 138 14) (2 retransmission)+ ...= 138 14 + 792 p by neglecting the terms p2.T = T’ if p = 5,58%. Master of Computer Scien...

Ngày tải lên: 17/09/2012, 09:13

... incomparison with trace 3? 2. Which exchange of frames will allow the station whose MAC address is:00:02:6f:09:3f:b0 to search others stations on the SSID "Test-captureTD " ?3. What is the ... can be configured, and what do theycorrespond to ?3. How do you configure a Wifi card under Linux to make it function in a network named"TPMOB" in ad hoc mode or infrastructure, on...

Ngày tải lên: 17/09/2012, 09:13

... alt="" 3. Primer design  Step 1: Denature DNA, 95 o C, 5min  Step 2: Annealing: - Denature DNA, 95 0 C, 30 s-1min - Annealing, 55-60 o C, 1min  Step 3: Extension, 70-72 o C, 30 s-1min ... 30 s-1min - Annealing, 55-60 o C, 1min  Step 3: Extension, 70-72 o C, 30 s-1min Go to step 2, 32 cycles  Step 4: Holding, 4 o C, 0s  Steps programmed in PCR  Primers (short DNA fr...

Ngày tải lên: 23/03/2014, 22:20

... (dB) 13 Attenuation Figure 3- 13: A digital signal distorted by noise and then repeated Figure 3- 12: An analog signal distorted by noise and then amplified 14 Latency • Delay between transmission ... in choosing transmission method • Limited by signaling and multiplexing techniques used in given transmission method • Transmission methods using fiber-optic cables achieve fas...

Ngày tải lên: 30/03/2014, 07:20

... Master of Computer Science 1 - MOB Mobile InternetBaey, Fladenmuller – Subject 11/1 3MOB TME Subject 1 – Signal TransmissionSIGNAL AND WAVES PROPAGATIONData transmission on a physical support ... Voltage ratio32 1.4164 2101 03, 16 Master of Computer Science 1 - MOB Mobile Internet4/ 13 Baey, Fladenmuller – Subject 120100 1 030 100 031 ,64010 000100x10(x/10)10(x/20)4. What does a...

Ngày tải lên: 17/09/2012, 09:13