| 摘要(英) |
In high-speed communication systems, RS codes have a widespread use to provide error protection. For burst errors and random errors, RS code has become a popular choice to provide data integrity due to its good error correction capability. This feature has been an important factor in adopting RS codes in many practical applications such as wireless communication system, cable modem, computer memory, and xDSL systems, etc.
In this thesis, we focus on the topic of Reed-Solomon code, and we develop an Intelligent Property (IP) for RS codec, which includes encoder and decoder. The major issues of our design are focusing on the high-speed communication, which includes the xDSL system and the upstream part of cable modem. According to the characteristics of channel quality, there are different transmission specifications in these two systems. This is called multi-mode system. Therefore, we propose a reconfigurable multi-mode Reed Solomon codec to fit various applications. The codec consists of two parts, the softcore and the hardcore. The part of the softcore is a configurable control unit, which can change RS specification to fit various system application; and the part of the hardcore is a fixed operating datapath architecture, which can optimize the arithmetic units in speed, area, and power. In practical application, we can configure the parameters of RS codec to apply various systems on real-time.
In circuit realization, we use the techniques of parallelism and pipelinism to implement the multi-mode hardcore, which is suitable for applying various systems. The chip is implemented by 0.35 um cell-based technology. The total gate count is about 34,647 and the core size is 1578? um2. The operating frequency is 100MHz, and power consumption is 132mW for 3.3 volt. Finally, we will apply our design to several the specifications of products, e.g., DVD and ADSL systems. |
| 參考文獻 |
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