Bandwidth-efficient Bit-interleaved Coded Cooperative Communications

نویسندگان

  • Hieu T. Nguyen
  • Ha H. Nguyen
  • Tho Le-Ngoc
چکیده

A cooperative coding scheme using M-ary modulation for high spectral efficiency and repetitive information transmission for diversity improvement is proposed. The encoder is a parallel concatenation of two bit-interleaved coded M-ary modulators (BICM) with scalable repetition of information symbols. As a result, the fraction of repeated information and the spectral efficiency of M-ary modulation can be used for bandwidth-performance tradeoff. Performance analysis is carried out to verify the performance advantage of the proposed system. In particular, analytical and simulation results in various block fading scenarios show that for a given bandwidth efficiency, a proper selection of the fraction of repeated information and the spectral efficiency of M-ary modulation can provide a large performance improvement.

برای دانلود رایگان 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

Bit Interleaved Coded Modulation Using Multiple Turbo Codes

Bandwidth efficient coding schemes employing bit interleaved coded modulation and low complexity multiple turbo codes are investigated. The BER performance of these designs is shown to be superior to bit interleaved coded modulation schemes using conventional turbo codes.

متن کامل

Intralevel Interleaving for BICM in OFDM Scenarios

Interleaver design for bit-interleaved coded modulation in highly bandwidth-efficient transmission is investigated. Based on an equivalent channel model with parallel binary input channels, the variation of the so-called bit level capacities is identified as an additional source of “fading” that has to be taken into account for interleaver design. We assess the more appropriate approach of intr...

متن کامل

Bit-interleaved coded modulation with iterative decoding and 8 PSK signaling

We have suggested bit-interleaved coded modulation with soft decision iterative decoding (BICM-ID) for bandwidth-efficient transmission over Gaussian and fading channels. Unlike trellis coded modulation, BICM-ID has a small free Euclidean distance but large diversity order due to bit interleaving. With iterative decoding, soft bit decisions can be employed to significantly improve the condition...

متن کامل

A Survey on Coded Modulation Techniques for Mobile Receivers

Coded modulation is a bandwidth efficient schemes that combines the function of coding and modulation. In this paper a comparative study of various modulation techniques such as Trellis coded modulation(TCM),Turbo Trellis coded modulation(TTCM),Bit-Interleaved Coded Modulation(BICM) ,Iterative Decoding Bit-Interleaved Coded Modulation(BICM-ID) and Superposistion Coded Modulation schemes over Ga...

متن کامل

Optimized Symbol Mappings for Bit-Interleaved Coded Modulation with Iterative Decoding

— We investigate bit-interleaved coded modulation with iterative decoding (BICM-ID) for bandwidth efficient transmission , where the bit error rate is reduced through iterations between a multilevel demapper and a simple channel decoder. In order to achieve a significant turbo-gain, the assignment strategy of the binary indices to signal points is crucial. We address the problem of finding the ...

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

عنوان ژورنال:
  • Wireless Personal Communications

دوره 46  شماره 

صفحات  -

تاریخ انتشار 2008