W
Waqas Ahmed
Researcher at Pakistan Institute of Engineering and Applied Sciences
Publications - 36
Citations - 483
Waqas Ahmed is an academic researcher from Pakistan Institute of Engineering and Applied Sciences. The author has contributed to research in topics: Throughput & Throughput (business). The author has an hindex of 10, co-authored 35 publications receiving 392 citations. Previous affiliations of Waqas Ahmed include Victoria University, Australia.
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Journal ArticleDOI
Comments on "Analysis of cognitive radio spectrum access with optimal channel reservation
TL;DR: A number of errors in the Markov model and analysis of the blocking and forced termination probabilities in a cognitive radio network, given in [4], are discussed and the correct expressions of forced termination and blocking probabilities are provided.
Proceedings ArticleDOI
Measurement and Correction of Systematic Odometry Errors Caused by Kinematics Imperfections in Mobile Robots
TL;DR: In this article, the authors proposed a method for calibration of differential drive mobile robots, which is very simple to perform and insensitive to the random errors and provides near optimal results (with respect to the systematic errors) in a single test due to its inherent robustness.
Proceedings ArticleDOI
TDD cognitive radio femtocell network (CRFN) operation in FDD downlink spectrum
TL;DR: It is shown that with a proper sensing and transmission scheme the capacity of the CRFN can be increased by simultaneous transmissions on multiple channels, water-filling further improves the result when interference from the macrocell basestation is large.
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Towards Efficient Wireless Body Area Network Using Two-Way Relay Cooperation
TL;DR: A smart and energy efficient system is articulated that utilizes all three communication modes, namely direct, one- way relay and two-way relay, as the direct link performs better for a certain range, but the cooperative communication gives better results for increased distance in terms of EE.
Journal ArticleDOI
On Research Challenges in Hybrid Medium-Access Control Protocols for IEEE 802.15.6 WBANs
Abdul Saboor,Rizwan Ahmad,Waqas Ahmed,Adnan K. Kiani,Yannick Le Moullec,Muhammad Mahtab Alam +5 more
TL;DR: A first detailed survey of existing hybrid MAC protocols based on the IEEE 802.15.6 standard is provided and the significance of hybridMAC protocols in meeting the design challenges while comparing them to standard MAC protocols is highlighted.