Complete Analysis of Space Time Group Codes
نویسندگان
چکیده
Space-time codes employ constellations of complex matrices. There are many advantages if this constellation forms a group under multiplication. Special cases have been considered to date, but in this paper all such constellations are analyzed. For a given constellation, the Chernoff bound for the probability of error is an explicit rational function in the SNR. By comparing these functions, our method gives a means to find, for a given number of transmit antennas, rate, and SNR, the best group constellation.
منابع مشابه
Characterization of $2times 2$ full diversity space-time codes and inequivalent full rank spaces
In wireless communication systems, space-time codes are applied to encode data when multiple antennas are used in the receiver and transmitter. The concept of diversity is very crucial in designing space-time codes. In this paper, using the equivalent definition of full diversity space-time codes, we first characterize all real and complex $2times 2$ rate one linear dispersion space-...
متن کاملCooperative Orthogonal Space-Time-Frequency Block Codes over a MIMO-OFDM Frequency Selective Channel
In this paper, a cooperative algorithm to improve the orthogonal space-timefrequency block codes (OSTFBC) in frequency selective channels for 2*1, 2*2, 4*1, 4*2 MIMO-OFDM systems, is presented. The algorithm of three node, a source node, a relay node and a destination node is formed, and is implemented in two stages. During the first stage, the destination and the relay antennas receive the sym...
متن کاملProviding a conceptual model of the underground space as a urban development catalyst Using the grounded theory
Aims & backgrounds: Over time, cities are confronted with a number of natural and artificial problems such as lack of green and open spaces, high density and lack of recreational spaces, which in some cases can be reasonably efficient use of subsurface spaces. Builders of subsurface space are the urban development catalyst. Methodology: The purpose of this study is qualitative and fundament...
متن کاملCyclic Orbit Codes with the Normalizer of a Singer Subgroup
An algebraic construction for constant dimension subspace codes is called orbit code. It arises as the orbits under the action of a subgroup of the general linear group on subspaces in an ambient space. In particular orbit codes of a Singer subgroup of the general linear group has investigated recently. In this paper, we consider the normalizer of a Singer subgroup of the general linear group a...
متن کاملGenealogical method of urban typo-morphology with the aim of deriving pattern for providing form-based codes
Introduction: The emergence of form-based codes (FBCs), along with the familiar and near-universal rejection of conventional zoning, is a complex story, and more interesting than might first be supposed. The Codes Study generally does not track developer-driven form-based codes. The socio-economic context of form-based codes has shown positive FBC impacts on physical and environmental well-bein...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005