Low-Power Cooling Codes with Efficient Encoding and Decoding

TL;DR

This paper introduces new low-power cooling (LPC) codes that control temperature and power in interconnects, providing efficient encoding/decoding schemes and error correction capabilities, advancing energy-efficient communication technology.

Contribution

The paper presents novel constructions of LPC codes with efficient encoding, decoding, and error correction, based on mappings from cooling codes, improving energy management in interconnects.

Findings

Constructed LPC codes of size (n/w)^{w-1} with fixed w.

Demonstrated efficient encoding and decoding schemes.

Provided methods for error correction in LPC codes.

Abstract

A class of low-power cooling (LPC) codes, to control simultaneously both the peak temperature and the average power consumption of interconnects, was introduced recently. An $(n,t,w)$-LPC code is a coding scheme over $n$ wires that (A) avoids state transitions on the $t$ hottest wires (cooling), and (B) limits the number of transitions to $w$ in each transmission (low-power). A few constructions for large LPC codes that have efficient encoding and decoding schemes, are given. In particular, when $w$ is fixed, we construct LPC codes of size $(n/w)^{w-1}$ and show that these LPC codes can be modified to correct errors efficiently. We further present a construction for large LPC codes based on a mapping from cooling codes to LPC codes. The efficiency of the encoding/decoding for the constructed LPC codes depends on the efficiency of the decoding/encoding for the related cooling codes and the ones for the mapping.