ALOHA with Collision Resolution: Physical layer description and software defined radio implementation

Author

Liu, Xin ; Kountouriotis, John ; Petropulu, Athina P. ; Dandekar, Kapil R.

Author_Institution

Electr. & Comput. Eng. Dept., Drexel Univ., Philadelphia, PA, USA

fYear

2010

fDate

14-19 March 2010

Firstpage

3330

Lastpage

3333

Abstract

A cross-layer scheme, namely ALOHA with Collision Resolution (ALOHA-CR), is proposed for high throughput wireless communications in a cellular scenario. Transmissions occur in a time-slotted ALOHA-type fashion but with an important difference: simultaneous transmissions of two users can be successful. The physical layer required to achieve this functionality is described and the statistical properties of the user delays are determined so that the probability of user separation is maximized. An implementation of ALOHA-CR on the Wireless Open Access Research Platform (WARP) testbed containing software defined radio nodes is discussed and experimental results are presented.

Keywords

multi-access systems; protocols; software radio; cellular scenario; collision resolution; high throughput wireless communication; physical layer description; software defined radio implementation; time slotted ALOHA; wireless open access research platform; Bandwidth; Delay; Diversity reception; Frequency diversity; Physical layer; Software radio; Software testing; System testing; Throughput; Wireless networks; MIMO systems; blind source separation; collision resolution; multi-user system; software defined radio;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Conference_Location

Dallas, TX

ISSN

1520-6149

Print_ISBN

978-1-4244-4295-9

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2010.5496007

Filename

5496007