Sliding Window Protocol Java Program
• When the receiver sends an ACK, it includes the number of next frame it expects to receive. For example in order to acknowledge the group of frames ending in frame 4, the receiver sends an ACK containing the number 5. When sender sees an ACK with number 5, it comes to know that all the frames up to number 4 have been received. Psg design data book pdf free download mechanical. Sliding Window on Sender Side • At the beginning of a transmission, the sender's window contains n-l frames.
Tp = d/s Efficiency – It is defined as the ratio of total useful time to the total cycle time of a packet. For stop and wait protocol, Total cycle time = Tt(data) + Tp(data) + Tt(acknowledgement) + Tp(acknowledgement) = Tt(data) + Tp(data) + Tp(acknowledgement) = Tt + 2*Tp Since acknowledgements are very less in size, their transmission delay can be neglected. Efficiency = Useful Time / Total Cycle Time = Tt/(Tt + 2*Tp) (For Stop and Wait) = 1/(1+2a) [ Using a = Tp/Tt ] Effective Bandwidth(EB) or Throughput – Number of bits sent per second. EB = Data Size(L) / Total Cycle time(Tt + 2*Tp) Multiplying and dividing by Bandwidth (B), = (1/(1+2a)) * B [ Using a = Tp/Tt ] = Efficiency * Bandwidth Capacity of link – If a channel is Full Duplex, then bits can be transferred in both the directions and without any collisions. Number of bits a channel/Link can hold at maximum is its capacity.
A Double Ended Queue would be a good data structure for Window Sliding Problem as it allows data to be inserted and deleted from both front and rear ends in a queue. Must Read: Sliding Window Algorithm Analysis A brute force solution to this problem will give a runtime complexity of O(nw) which is not efficient. Implementation of Sliding Window Protocol Problem using Heap Data Structure will give a runtime complexity of O(n Log w). If a Queue is used to solve obtain solution to Sliding Window Problem, O(n) runtime complexity can be achieved. Download 2013 oricon top 100 rar free.
The block is use to describe about the java program,html etc. Tuesday, 13 March 2012. Simulation of Sliding Window Protocol /* Simulation of Sliding Window Protocol */.
The receiver refuses to accept any packet but the next one in sequence. If a packet is lost in transit, following packets are ignored until the missing packet is retransmitted, a minimum loss of one.
Sliding Window Protocol Example
• Multiple frames sent by source are acknowledged by receiver using a single ACK frame. Sliding Window • Sliding window refers to an imaginary boxes that hold the frames on both sender and receiver side. • It provides the upper limit on the number of frames that can be transmitted before requiring an acknowledgment. • Frames may be acknowledged by receiver at any point even when window is not full on receiver side. • Frames may be transmitted by source even when window is not yet full on sender side. • The windows have a specific size in which the frames are numbered modulo- n, which means they are numbered from 0 to n-l.
Now the receive could easily reject all the duplicate packets which were starting from 0 because now it will be waiting for packet number 4( We have added an extra sequence number now). Trying with Sequence numbers 4. Now Trying with one extra Sequence Number. In the next article, we will explain Selective repeat and comparison between the 2 protocols. This article is contributed by Pranjul Ahuja.
Sliding Window Protocol Java Program
Adobe after effects cs5 portable free download full version. IIRC, the sliding windows algorithm works like this: • The text file is chunked at first; • For each chunk, you slide the window (a 15-char block in your running case) and compute their fingerprint for each window of text; • You now have the fingerprint of the chunk, whose length is proportional to the length of chunk. The next is how you use the fingerprint to compute the similarity between different documents, which is out of my knowledge. Could you please give us the pointer to the article you referred in the OP. As an exchange, I recommend you this paper, which introduce a variance of sliding window algorithm to compute document similarity. Another application you can refer to is rsync, which is a data synchronisation tool with block-level (corresponding to your chunk) deduplication. See this short article for.