The block diagram for the convolutional coded DHPIM

نویسندگان

  • S. Rajbhandari
  • Z. Ghassemlooy
  • N. M. Aldibbiat
  • Sujan. rajbhandari
چکیده

The paper presents analysis and simulation for the convolutional coded DH-PIM using 1⁄2 convolutional code with the constraint length of 3. Decoding is implemented using the Viterbi algorithm. The proposed scheme is simulated for a constraint length of 7 and the results are compared with a number of different modulation techniques. DH-PIM with convolutional coding requires about 4-5 dB lower SNR for a given slot error rate compared with the un-coded DH-PIM.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A New Block-Coded Modulation Scheme for Rayleigh Fading Channel, Soft Output Decoding Issues

We investigate the application of the sum-product algorithm to the decoding of a q-ary Block-Coded Modulation (BCM) scheme which is based on extending the parity check equations of a binary block code to q-ary symbols. This is achieved by decomposing the code into a sub-code with an acyclic Tanner graph and its cosets which. are represented by a trellis diagram. The combination of these two cyc...

متن کامل

Comparative Study of Concatenated Turbo Coded and Space-time Block Coded as Well as Space-time Trellis Coded Ofdm

Space-time block codes provide substantial diversity advantages for multiple transmit antenna systems at a low decoding complexity. In this study, we concatenate both space-time block and trellis codes with Turbo Convolutional (TC) coded Orthogonal Frequency Division Multiplexing (OFDM) for achieving a high coding gain. The associated performance and complexity of the coded OFDM schemes is comp...

متن کامل

A Novel Technique for the Evaluation of the Transfer Function of Parallel Concatenated Convolutional Codes

Turbo codes, in the form of parallel concatenated convolutional codes, consist of two recursive systematic convolutional encoders separated by an interleaver. Due to the presence of the interleaver, each constituent convolutional encoder accepts as input a block of information bits with a size equal to that of the interleaver rather than a continuous stream of information bits. By determining t...

متن کامل

Turbo-like Codes are Good for the Block-Fading Channel

This paper studies turbo-like coded modulation in the block-fading channel. In particular we show that the performance of such coded modulation schemes is close to the information outage probability of the channel for any block length, as opposed to standard coded modulation schemes based on trellis-terminated convolutional codes. For large block length, asymptotic performance of the proposed s...

متن کامل

Bit-Interleaved Coded Modulation for Delay-Constrained Mobile Communication Channels

The role of the interleaver in a Bit Interleaved Coded Modulation (BICM) system is investigated. Square block interleavers and convolutional interleavers are compared to the random interleaver originally used by Zehavi [1]. It is shown that for short latencies (20 ms) the square block interleaver performs better than the random interleaver. However, when the side of the square block interleaver...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006