The effect of spreading gain control on a CDMA slotted ALOHA system
| Autor: | HahnEarl Jeon, Jaiyong Lee, Mi-Sun Do, Jung-Shin Park |
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| Rok vydání: | 2003 |
| Předmět: |
Computer Networks and Communications
Network packet Computer science Code division multiple access business.industry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Throughput Interference (wave propagation) Aloha Bit rate Automatic gain control business Throughput (business) Communication channel Computer network |
| Zdroj: | Computer Communications. 26:996-1006 |
| ISSN: | 0140-3664 |
| DOI: | 10.1016/s0140-3664(02)00189-5 |
| Popis: | In a CDMA slotted ALOHA channel, the bit rate of user information is determined by a spreading gain. The large value of spreading gain enhances the packet throughput by increasing the probability of a successful packet transmission. However, it degrades the effective throughput by reducing the number of information bits carried via a packet. To solve the problem, we investigated the effect of spreading gain control (SGC) on both throughputs, and evaluated the throughput performance for various SGC schemes. The results show that variable SGC achieves considerably higher effective throughput by adjusting the value of spreading gain to interference level. |
| Databáze: | OpenAIRE |
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