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Yearly Archives: 2016

[Wireless Network] Introduction to Multipath TCP (MPTCP)

MPTCP is an evolution of TCP that allows a concurrent use of multiple interfaces for a single TCP session. If the both sides of a TCP connection are MPTCP-capable (otherwise a legacy TCP will be used between them), multiple subflows are established over different data paths, i.e., multiple network interfaces, and the MPTCP sender spreads TCP segments over the subflows. Spreading […]

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[Wireless Network] 802.11e QoS and Rate Adaptation

As the follow up from Wi-Fi Introduction, other requirements called Quality of Service and Rate Adaptation for WLAN were introduced to understand its channel access (EDCA and HCCA). The detail presentation can be seen below. [gview file=”http://yurissaputra.staff.ugm.ac.id/files/2016/07/Yuris_20140327_802.11e-and-Rate-Adaptation.pdf”]

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[Wireless Network] Basics of Wi-Fi

Once in 2015, I was requested by my former supervisor to present this Wi-Fi Introduction in Mobile Computing class for M.S degree students in Department of Electrical and Information Engineering, Seoul National University of Science and Technology. Check it out for the detail presentation below. [gview file=”http://yurissaputra.staff.ugm.ac.id/files/2016/07/Yuris_20140310_Basics-of-Wi-Fi_ver2.pdf”]

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[JKIICE Korea Journal 2015] Performance Analysis of Adaptive Radio Activation in Dual-Radio Aggregation System

Today’s smartphones and user devices are equipped with multiple radio interfaces increasingly. Aggregating theses multiple radio interfaces and using them concurrently will increase a user’s communication speed immediately, but at the expense of increased power consumption. In this paper, we develop a mathematical performance model of an adaptive radio activation scheme by which a radio […]

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[IEIE Korea Journal 2014] A Comparative Study of Aggregation Schemes for Concurrent Transmission over Multiple WLAN Interfaces

To increase wireless capacity, the concurrent use of multiple wireless interfaces on different frequency bands, called aggregation, can be considered. In this paper, we focus on aggregation of multiple Wi-Fi interfaces with packet-level traffic spreading between the interfaces. Two aggregation schemes, link bonding and multipath TCP (MPTCP), are tested and compared in a dualband Wi-Fi radio […]

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[APWCS 2013 International Conference] Where to Aggregate?: A Comparative Study of Aggregation Strategies in Multi-Radio System

To increase wireless capacity, the concurrent use of multiple wireless interfaces, called aggregation, can be considered. In this paper, we focus on using multiple WiFi interfaces between an access point and a client, and packet-level traffic spreading between interfaces. Two aggregation strategies, link bonding and multipath TCP (MPTCP), are tested and compared in a multi-WiFi […]

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Academic Schedule UGM 2016/2017

The new Fall semester 2016 for students in Universitas Gadjah Mada will begin very soon. Here you need to prepare your required stuffs to comply with Academic Schedule from university. You can donwload the official copy/scan of academic schedule for 2016/2017 HERE [gview file=”http://yurissaputra.staff.ugm.ac.id/files/2016/07/Kalender_Akademik_Tahun_2016_2017.pdf”]

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