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Channel Coding Modulation Method for Wireless Distributed Network

A distributed network and channel coding technology, applied in the field of distributed network channel coding and modulation, can solve problems such as less than ideal bit error rate performance

Active Publication Date: 2011-12-21
杭州瑞尔朗信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the research and design of this distributed network channel code (DNCC) concept has only recently started, many problems encountered in the design and implementation of distributed coding have not been resolved, and the bit error rate performance is not ideal

Method used

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  • Channel Coding Modulation Method for Wireless Distributed Network
  • Channel Coding Modulation Method for Wireless Distributed Network
  • Channel Coding Modulation Method for Wireless Distributed Network

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Embodiment Construction

[0019] The invention will be further described below through specific embodiments.

[0020] The present invention considers an uplink transmission system in a wireless cellular mobile network. see figure 1 , figure 1 A block diagram of an uplink transmission system including a source mobile terminal A (source MT), a cooperative mobile terminal B (cooperative MT), a relay node R (RN) and a base station C (BS) is shown. Wherein the source mobile terminal MT sends the data packet to the base station BS through the relay node RN. Here, the present invention only uses a cellular mobile network as an example. In fact, the present invention can be applied to all wireless networks, such as wireless sensor networks, ad hoc (point-to-point), wireless local area networks, etc., and should not be regarded as a limitation.

[0021] Cooperative Transfer Phase

[0022] The source mobile terminal may cooperate with other mobile terminals for data transfer. According to the literature [K....

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Abstract

The invention provides a wireless distributed network channel coding modulation method aiming at a wireless network. The method comprises the following steps: interleaving data obtained by decoding a signal received from a distributed node at a relay node, then sending the interleaved data to a network encoder, decoding by adopting an iterative algorithm through a receiver at a target node. A simulation result shows that the bit rate error of the system with the interleaving and iterative decoding algorithm is obviously improved in comparison with that of a system with iterative decoding algorithm.

Description

technical field [0001] The invention relates to cellular mobile network technology, in particular to a distributed network channel coding and modulation method suitable for multiple access channels in a wireless network. Background technique [0002] Distributed coding, as a special channel coding collaborative communication network development model, has attracted the attention of a large number of researchers. The construction concept of distributed coding has been applied to traditional channel coding, such as [B.Zhao and M.C.Valenti, "Distributed turbo codes: towards the capacity of the relay channel," IEEE VTC'03-Fall, vol.1, pp .322-326, Oct.2003.] Public distributed turbo codes, literature [S.Yiu, R.Schober and L. Lampe, "Distributed space-time block coding," IEEE Trans.Commun., vol.54, no.7, pp.1195-2006, Jul.2006.] Public distributed space-time codes, literature [A.Chakrabarti, A.Baynast, A.Sabharwal and B.Aazhang, "Low density parity check codes for the relay cha...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04B7/06
Inventor 林子怀刘扬
Owner 杭州瑞尔朗信息科技有限公司