The effect of spreading gain control on a CDMA slotted ALOHA system

Mi Sun Do, Jung Shin Park, Hahnearl Jeon, Jai Yong Lee

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)996-1006
Number of pages11
JournalComputer Communications
Issue number9
Publication statusPublished - 2003 Jun 2

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications


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