1. Intersymbol interference (ISI) and multiaccess interference (MAI) are two major impairments on the performance of CDMA systems.

2. The collection of people, hardware, and software the multiaccess computer together with its local community of users will become a node in a geographically distributed computer network.

3. Noise interference and multiaccess interference are the main impairment to the performance of chaotic CDMA DS/SS communication systems.

4. In this paper, the principle of ultra-wideband multiaccess communication is analyzed with the transmitting signal.

5. The concept, function and architecture of passive optical network (PON) are presented in this paper. The multiplexing and multiaccess transmission technologies for PON are also described.

6. A preamble is formed by an arbitrary Permuted sequence of F frequencies, so it is possessed of multiaccess capability and low propability of exploitation.

7. Once an SVC is established, it functions like a PVC. SVCs can be used in point-to-point subinterface configuration or point-to-multipoint nonbroadcast multiaccess (NBMA) configuration.