Rate of convergence for the `square root formula' in the Internet transmission control protocol

2006 ◽  
Vol 38 (4) ◽  
pp. 1132-1154 ◽  
Author(s):  
Teunis J. Ott
2006 ◽  
Vol 38 (4) ◽  
pp. 1132-1154
Author(s):  
Teunis J. Ott

The ‘square root formula’ in the Internet transmission control protocol (TCP) states that if the probability p of packet loss becomes small and there is independence between packets, then the stationary distribution of the congestion window W is such that the distribution of W√p is almost independent of p and is completely characterizable. This paper gives an elementary proof of the convergence of the stationary distributions for a much wider class of processes that includes classical TCP as well as T. Kelly's ‘scalable TCP’. This paper also gives stochastic dominance results that translate to a rate of convergence.


2020 ◽  
Vol 16 (1) ◽  
pp. 19-24
Author(s):  
Pether V B Romony ◽  
Lanny Sitanayah ◽  
Junaidy B Sanger

Asap rokok adalah salah satu asap beracun yang berbahaya bagi kesehatan manusia dari sisi biologis maupun sisi kimiawi. Pada penelitian ini, penulis mengimplementasikansebuah sistem deteksi asap rokok berbasis The Internet of Things menggunakan sensor MQ135, Arduino board dan NodeMCU. Kemudian, penulis melakukan perbandingan Quality of Service dari dua protokol komunikasi data, yaitu Transmission Control Protocol dan User Datagram Protocol pada sistem tersebut. Parameter Quality of Service yang dibandingkan saat proses pengiriman data adalah delay dan data loss. Untuk setiap protokol, simulasi dilakukan selama 1 jam dengan pengiriman data setiap 5 detik, 10 detik, sampai 1 menit. Hasil yang diperoleh adalah data loss dengan Transmission Control Protocol lebih rendah dari pada data loss dengan User Datagram Protocol, sedangkan delay dengan User Datagram Protocol lebih rendah dari pada delay dengan Transmission Control Protocol.


Author(s):  
Agnieszka Chodorek

One of the most popular transport protocols—Transmission Control Protocol (TCP)—has a long history. The first document describing TCP protocol in early stages was published in 1974. Since then, TCP specification was changed several times, and finally in 1981 was standardised by RFC 793 (Postel, 1981). Two years later TCP, together with Internet Protocol (IP), became the official protocol suite of the Internet. In the same year the first widely available implementation of TCP in the 4.2 BSD operating system was built.


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