Access Technologies

We live in a world where businesses can fail or thrive through connectivity and networks. The availability of secure, affordable networks allows organisations to connect offices, facilities, staff, management, customers, suppliers and partners together into a commercial ecosystem. In such an environment organisations are increasingly dependent on their networks for not just their day-to-day operational existence but also their current and future commercial fortunes. tech news

Secure server access from anywhere ... This white paper describes how you can greatly increase physical security in the datacentre by enabling full remote access to securely located servers, comprehensive user authentication, user tracking, and immediate problem alerts. tech news

Many customers have separate teams that administer networks with Cisco IOS Software routers and switches. While Network Operations may perform some administration, it is imperative that Security Operations perform security-specific administration. Some Enterprises also need flexibility when deploying a router to a small or home office (SOHO) user to deny access to certain areas of the configuration, while allowing access to other areas such as Virtual Private Network (VPN) client and LAN configurations. tech news

The objective of this paper is to demonstrate that the use of turbo codes can both improve the overall system performance in OCDMA networks and even allow more simultaneously transmitting users than is the spreading length of the optical orthogonal sequence. The paper also describes a channel model for the bit asynchronous OCDMA system and discusses its information theoretical capacity when single-user detection is applied. tech news

As CDMA-based cellular networks mature, the current point-to-point links used in connecting base stations to network controllers will evolve to an IP-based Radio Access Network (RAN) for reasons of lower cost due to statistical multiplexing gains, better scalability and reliability, and the projected growth in data applications. This paper studies the impact of congestion in a best-effort IP RAN on CDMA cellular voice networks. The paper proposes and evaluates three congestion control mechanisms, admission control, diversity control, and router control, to maximize network capacity while maintaining good voice quality. tech news