Superposition Coding for Costa Channels
نویسندگان
چکیده
We present practical codes designed for the Gaussian dirty paper (Costa) channel. We show that the dirty paper decoding problem can be transformed into an equivalent multiple-access problem, for which we apply superposition coding. Our approach is a generalization of the nested lattices approach of Zamir, Shamai and Erez. We present simulation results which confirm the effectiveness of our methods.
منابع مشابه
On the Achievable Rate-Regions for the Gaussian Two-way Diamond Channels
In this channel,we study rate region of a Gaussian two-way diamond channel which operates in half-duplex mode. In this channel, two transceiver (TR) nodes exchange their messages with the help of two relay nodes. We consider a special case of the Gaussian two-way diamond channels which is called Compute-and-Forward Multiple Access Channel (CF-MAC). In the CF-MAC, the TR nodes transmit their mes...
متن کاملOptimal Rate Allocation for Superposition Coding in Quasi-Static Fading Channels
Coding with a single fixed rate may not achieve the maximum throughput of a compound channel if the transmitter only has access to channel state statistics. Superposition coding for broadcast channels can be employed to increase the throughput. We study the optimal rate allocation for finite level superposition coding to maximize the throughput. Results show 2-level superposition coding is adeq...
متن کاملSuperimposed XOR: Approaching Capacity Bounds of the Two-Way Relay Channels
In two-way relay channels, bitwise XOR and symbol-level superposition coding are two popularnetwork-coding based relaying schemes. However, neither of them can approach the capacity boundwhen the channels in the broadcast phase are asymmetric. In this paper, we present a new physicallayer network coding (PLNC) scheme, called superimposed XOR. The new scheme advances the existing...
متن کاملA Note on Broadcast Channels with Stale State Information at the Transmitter
This paper shows that the Maddah-Ali–Tse scheme which establishes the symmetric capacity of two example broadcast channels with strictly causal state information at the transmitter is a simple special case of the Shayevitz– Wigger scheme for the broadcast channel with generalized feedback, which involves block Markov coding, compression, superposition coding, Marton coding, and coded time shari...
متن کاملAn Iterative SISO Strategy for MIMO Fading Channels
We propose a low complexity superposition coding approach to maximize the throughput of MIMO quasi-static fading channels. The MIMO channel is transformed to SISO channels using MMSE and an iterative decoding approach is proposed. The throughput of the proposed coding and decoding strategy may be less than the maximum possible.
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 2004