Design and Analysis of a Novel Low Complexity and Low Power Ping Lock Arbiter by using EGDI based CMOS Technique

Abstract

Network-on-chip (NoC) provides solution to overcome the complications of the on-chip interconnect architecture in multi-core systems. It mainly consists of router, links and network interface. An essential component of on-chip router is an arbiter that significantly impacts the performance of the router. The arbiter should provide fast and fair arbitration when it is placed in Critical Path Delay (CPD) systems. The main aim of this research work is to design a novel arbiter for an effective network scheduler in complex real time applications. At the same time resource allocation and power consumption should be very low. Previously, a novel gate level Ping Lock Arbiter (PLA) is designed to overcome the limited fair arbitration in Improved Ping Pong Arbiter (IPPA) with less delay. But the chip size and power consumption are very high. To overcome this problem, an Effective Gate Diffusion Input (EGDI) logic-based CMOS scheme is used to design a novel Compact Ping Lock Arbiter (CPLA). The proposed CPLA is compared with the existing PLA based on static CMOS scheme. The comparison between the conventional and proposed arbiter is carried out to analyze the area, delay and power by using Tanner Tool 14.1 with 250nm and 45nm technology. The proposed CPLA is suitable for compact and smart applications with glitch free and fair arbitration. The proposed CPLA presents 41.2% reduction in total area consumption. It also provides 47.12% average Area and Power Product (APP) reduction when compared to the existing 4-bit PLA. Similarly, the proposed 8-bit CPLA shows 49.48% average APP product shrinkage when compared to conventional 8-bit PLA. For low power and area constraint applications, the proposed CPLA with EGDI is best in comparison to the static CMOS based ping lock round robin arbiter. Therefore, the results demonstrate that the proposed CPLA achieves low power and consumes less area than the existing ping lock arbiter.