A class of full diversity space-time codes
نویسندگان
چکیده
We propose a new class of space-time trellis codes for 4 transmit antennas. These codes combine set-partitioning and a super set of quasi-orthogonal space-time block codes in a systematic way to provide full diversity and improved coding gain. The result is a very powerful non full-rate code that provides full diversity and high coding gain for different number of states and at different rates. Also, it is possible to maintain a tradeoff between coding gain and rate. The decoding complexity of the new codes is very low because the symbols can be decoupled at the decoder. Simulation results demonstrate the good performance of our new space-time trellis codes. We provide a study of coding gain and different code examples.
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 کاملOPSK Space-Time Turbo Codes
This paper proposes a class of full space diversity QPSK space-time codes based on parallel concatenated convolutional (turbo) codes. A rank criterion of full space diversity is used in the design. Compared with space-time trellis codes, the simulations show it has robust performance at both quasi-static fading channel and time varying fading channel.
متن کاملFull rate space-time turbo codes
This paper proposes a class of full space diversity full rate space-time turbo codes. Both parallel concatenated and serially concatenated codes are designed. The full space diversity design is facilitated by a rank theory. Compared with space-time trellis codes, the simulations show the space-time turbo codes have excellent performance in both quasi-static fading channels and time varying fadi...
متن کاملArithmetic fuchsian groups and space time block codes *
In the context of space time block codes (STBCs) the theory of arithmetic Fuchsian groups is presented. Additionally, in this work we present a new class of STBCs based on arithmetic Fuchsian groups. This new class of codes satisfies the property full-diversity, linear dispersion and full-rate. Mathematical subject classification: 18B35, 94A15, 20H10.
متن کاملFull-Rate Full-Diversity Linear Quasi-Orthogonal Space-Time Codes for Any Number of Transmit Antennas
We construct a class of linear quasi-orthogonal space-time block codes that achieve full diversity over quasistatic fading channels for any transmit antennas. These codes achieve a normalized rate of one symbol per channel use. Constellation rotation is shown to be necessary for the full-diversity feature of these codes. When the number of transmit antennas is a power of 2, these codes are also...
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 2003