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#محاضرات_مادة_DSP LEC 1 https://youtu.be/lO40EAb7AYA LEC 2 https://youtu.be/V7WgsA0MQHU LEC 3 https://youtu.be/qXvSTYmhiOs LEC 4 https://youtu.be/-Sd0FD9iF6o LEC 5 https://youtu.be/KZ4l4Q7-U8w LEC 6 https://youtu.be/X9WFlNVvXRg LEC 7 https://youtu.be/JvnE9tyVRjU LEC 8 https://youtu.be/Lt-i0RiB1_c LEC 9 https://youtu.be/kFNDC7loUXY LEC 10 https://youtu.be/7qpZLKTf3Hc LEC 11 https://youtu.be/QzLSd7RGppk LEC 12 https://youtu.be/nh_hmE8NuiQ LEC 13 https://youtu.be/i60Os6OCkwI LEC 14 https://youtu.be/yN9UH8gb0Wc LEC 15 https://youtu.be/V08OZ85AxAU LEC 16 https://youtu.be/Mt6_ZRjE_TY

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الكوز الأول - المسائي

Q/ 
Line speed R = 10kbps
calculate Tbit, Tframe .

Sol/
Tbit = 1/R = 1/10⁴ = 10⁻⁴ ms

Tframe = one frame × Tbit = 11 × 10⁻⁴ = 0.0011 ms

كوز + حل صباحي

الواجب الأول 1⃣✅ ---------------------------------------------------------------------- Exercise (1): Given A periodic digital signal. If a pulse width is 40μs and a period of 160 μs. Determine its frequency, bit rate and duty cycle. How could you increase the bit rate by 50%? ---------------------------------------------------------------------- Exercise (2):  Consider Bit rate  100kbps, Packet size 2000bits, what is the time required to send 5 successive packets (i.e., total transmission time) if the time  interval is 10μsec? Hint: Packet size=(Packet length including header +Data+ trailer)= 2000bits ---------------------------------------------------------------------- Exercise (3):           Use  (1) Timing Diagram Method                 (2) Formulas Method Consider three intermediate nodes between A and B users, hop interval for each packet is 5sec. Determine       1- Transmission time for sending 10 packets using Packet-switching.       2- If the message consists of 5 packets, what is transmission time of Message-Switching.       3- Which transmission is the best?   ---------------------------------------------------------------------- Exercise (4): Consider  One file of K>>1 bits must be sent from A to C. The file is decomposed into packets of P bits each. Each packet contains 16 error-control bits, 32 bits of address and sequence number, in addition to the P data bits. 1- How many packets can be transmitted; if K=500Bytes and maximum packet size is 1000bits? Show each packet format.      2- If the hop time for each packet is 1sec, what is the total time required to send this file over a network of three nodes,  from Source         to Destination. Source  Node A  ---- Intermediate Node B ---Destination C