CDMA versus IDMA for subscriber cell density
- Resource Type
- Conference
- Authors
- Basharat, Asma; Khokhar, Imtiaz Ahmad; Murtaza, Saeed
- Source
- 2008 International Conference on Innovations in Information Technology Innovations in Information Technology, 2008. IIT 2008. International Conference on. :520-524 Dec, 2008
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
Signal Processing and Analysis
Multiaccess communication
Bandwidth
Interleaved codes
4G mobile communication
Transmitters
MIMO
Delay
Transceivers
Quality of service
Frequency conversion
- Language
Beyond third generation (B3G) and fourth generation (4G) communication systems require bandwidth efficiency and low complexity receivers to accommodate high data rate and large number of users per cell. This paper provides the recommendations for why Interleave Division Multiple Access (IDMA) stands out among all the present day multiple access systems. Even if IDMA is a special case of Code Division Multiple Access (CDMA), it simply trounces CDMA as far as the cell capacity is concerned. In IDMA, interleavers are used as the only means for user separation. Interleaver size can be varied for a set of users but the recommended interleaver size is 1024bits at which it provides better efficiency and minimum processing delay. Investigations carried throughout this paper are while using 1024 bit interleavers. IDMA exhibits the tendency to handle huge number of users.