Name
Abstract | ||
|---|---|---|
This paper investigates the characteristics and performance of different optical grooming switches, i.e., optical cross-connects (OXCs) capable of traffic grooming, under a dynamic traffic environment. We present four optical grooming-OXC architectures, namely, single-hop grooming OXC, multihop partial-grooming OXC, multihop full-grooming OXC, and light-tree-based source-node grooming OXC. After exploring their grooming capabilities, we propose three grooming schemes and two corresponding algorithms, grooming using auxiliary graph and grooming using light-tree. Through the algorithms, we evaluate the performance of different optical grooming OXCs in a dynamic traffic environment under different connection bandwidth-granularity distributions. Our investigation uncovers the following results: (1) the multihop full-grooming OXC can achieve the best network performance, but it may encounter cost and scalability constraints; (2) by using significantly less low-granularity electronic processing and intelligent traffic-grooming algorithms, the multihop partial-grooming OXC shows reasonable network performance and, hence, can be viewed as a cost-effective alternative when a network node does not require full-grooming capability; (3) the single-hop grooming OXC may cause a large amount of capacity waste and lead to poor network performance; and (4) through its multicast capability, a light-tree-based source-node grooming OXC can significantly out-perform the performance of a single-hop grooming OXC in terms of network throughput and network resource efficiency. From our results, we also observe that the connection bandwidth-granularity distribution has a large impact on network throughput and network resource efficiency and, therefore, should be carefully considered for network design and traffic provisioning. |
Year | DOI | Venue |
|---|---|---|
2003 | 10.1109/JSAC.2003.815683 | IEEE Journal on Selected Areas in Communications |
Keywords | Field | DocType |
Optical fiber networks,Optical packet switching,WDM networks,SONET,Wavelength division multiplexing,Telecommunication traffic,Optical switches,Optical interconnections,Bandwidth,Circuits | Network planning and design,Computer science,Computer network,Node (networking),Provisioning,Throughput,Multicast,Scalability,Traffic grooming,Network performance,Distributed computing | Journal |
Volume | Issue | ISSN |
21 | 7 | 0733-8716 |
Citations | PageRank | References |
65 | 3.39 | 8 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Keyao Zhu | 1 | 612 | 40.89 |
| Hui Zang | 2 | 1052 | 77.25 |
| B. Mukherjee | 3 | 65 | 3.39 |