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Signal-to-noise ratio (SNR) estimation is commonly used in wireless receivers to enhance the performance in different ways. In this paper a novel low complexity SNR estimator for OFDM is proposed. The estimator might be implemented using floating point representation or by using only the sign-bit, and can if desired be effectively implemented by reconfiguring the standard correlator used for time-
An Orthogonal Frequency-Division Multiplexing (OFDM) based multi-user massive Multiple-Input Multiple-Output (MIMO) system is considered. The problem of high Peak-to-Average Ratio (PAR) in OFDM based systems is well known and the large number of antennas (RF-chains) at the Base Station (BS) in massive MIMO systems aggravates this further, since large numbers of these Power Amplifiers (PAs) are use
This paper explores the situation when tenants in public houses, in a specific neighborhood, are given the legislated right to buy the houses they live in but can choose to remain in their houses and pay the regulated rent. This type of legislation has been passed in many European countries in the last 30-35 years (U.K. Housing Act 1980 is a leading example). The main objective with this type of l
Christianity is commonly held to have introduced an entirely new and better morality into the ancient world, a new morality that was decidedly universal, in contrast to the ethics of the philosophical schools which were only concerned with the intellectual few. Runar M. Thorsteinsson presents a challenge to this view by comparing Christian morality in first-century Rome with contemporary Stoic eth
In this paper we describe a concept that can be used to capture best practices in teaching and learning and for sharing knowledge between educators – The Pedagogical Pattern concept. We present the emergence and work of the Pedagogical Patterns Project. Its goal was initially to document solutions to teaching and learning problems in Computer Science, especially in the field of object-oriented pro
This paper suggests that the Payne models should not properly be regarded as the traffic flow analog of the Navier-Stokes equations of fluid dynamics. Further, the Chapman-Enskog asymptotic expansion in a small parameter is shown to lead to an alternate class of models that seem to have a more legitimate claim to that distinction. Details of this expansion, about the stable-flow equilibria of the
Christening gifts are on the one hand very concrete and material. They have a value, both economically and emotionally. But on the other hand they also have a function that is neither concrete nor material. They express feelings, hopes, and dreams of belonging and community. The gift has a meaning for both the one who receives it, and the one who presents the gift.
