Research

Cambridge Broadband Networks has an ambitious research programme with strong links to the Laboratory for Communications Engineering (LCE), at the University of Cambridge.

Research papers

The following technical papers are available to download.

Time variability of the foliated fixed wireless access channel at 3.5GHz

D.B. Crosby, V. Abhayawardhana, I.J. Wassell, M.G. Brown, M.P. Sellars

IEEE VTC Conference, June 2005, Stockholm, Sweden

Download this paper [760kb PDF]

Switchable-polarisation antenna for measuring the polarisation dependence of multipath in 3.5GHz FWA systems

C.L. Hong, I.J. Wassell, M.P. Sellars, S.D. Greaves, and M. Noakes

Electronics Letters, February 2005, Vol.41, No.4, pg.164-165

Download this paper [192kb PDF]

Opposite-sector uplink interference in broadband FWA networks in high-rise cities

M.P. Sellars, G.E. Athanasiadou, B. Ziolko, S.D. Greaves

IEE Electronics Letters, August 2004, Vol.40 No.17, pg.1070-1071

Download this paper [240kb PDF]

Precoding of Contention Bursts for Broadband Fixed Wireless Access

M.P. Sellars, S.D. Greaves, J. Porter, D.B. Crosby, B.R. Freeman

IEEE Global Communications Conference (Globecom), December 2003, San Francisco, CA.

Download this paper [148kb PDF]

Wideband Tapped Delay Line Channel Model at 3.5GHz for Broadband Fixed Wireless Access system as a function of Subscriber Antenna Height in Suburban Environment

C.L. Hong, I.J. Wassell, G.E. Athanasiadou, S.D. Greaves, and M.P. Sellars

Fourth International Conference on Information, Communications & Signal Processing (ICICS 2003), Nanyang Technological University 15-18 December 2003, Singapore.

Currently not available for download

The Effect of Building Height Variation on the Multiple Diffraction Loss Component of the Walfisch-Bertoni Model

D. Crosby, S.D. Greaves, and A. Hopper

IEEE Personal, Indoor and Mobile Radio Communications Conference (PIMRC), September 2003 (Beijing, China).

Download this paper [184kb PDF]

Simulation of Broadband FWA Networks in High-rise Cities with Linear Antenna Polarisation

M.P. Sellars, G.E. Athanasiadou, B. Ziolko, S.D. Greaves, and A. Hopper

IEEE Personal, Indoor and Mobile Radio Communications Conference (PIMRC), September 2003 (Beijing, China)

Download this paper [1Mb PDF]

Wideband Channel Measurements and Characterisation for Broadband Wireless Access

C. L. Hong, I. J. Wassell, G. E. Athanasiadou and M. P. Sellars

International Conference on Antennas & Propagation (ICAP'03), April 2003.

Download this paper [132kb PDF]

Word-specific Precoding of Contention Bursts for Broadband Wireless Networks

M.P. Sellars, S.D. Greaves, J. Porter, D.B. Crosby and B.R. Freeman

Draft paper, distributed with permission of the IEE. For the final version, please see IEE Electronics Letters, Vol.39 No.7, pages.624-625, 3 April 2003

Download this paper [96kb PDF]

Low Latency Handover in a Wireless ATM LAN

J. Naylon, D. Gilmurray, J. Porter, and A. Hopper

IEEE Journal on Selected Areas in Communications, Vol.16, August 1998, pp.909-921

Download this paper [236kb PDF]

Fast Start-up Equaliser for Radio ATM. IEEE SA Symposium on Communications and Signal Processing

M. P. Sellars, J. Porter, S. D. Greaves, A. Hopper and W. J. Fitzgerald

(COMSIG'98), September 1998, pp.11-16

Download this paper [228kb PDF]

A Theoretical Analysis of Multiple Diffraction in Urban Environments for Wireless Local Loop Systems

D. Crosby, S. Greaves and A. Hopper

Proceedings 9th Virginia Tech/MPRG Symposium on Wireless Personal Comms, Blacksburg, Virginia, June 1999

Download this paper [140kb PDF]

Performance of a Fast Start-up Equaliser for Indoor Radio

M. P. Sellars, J. Porter, S. D. Greaves, A. Hopper and W. J. Fitzgerald

IEEE Symposium on Personal, Indoor & Mobile Radio Communications (PIMRC'99), September 1999, Vol.3, pp.1124-1128

Download this paper [220kb PDF]

Anti-multipath Techniques for Broadband Wireless Access

M. P. Sellars and I. J. Wassell

ICUED/F-INFENG/TR363, October 1999

Currently not available for download

Stabilised Precoder with Antenna Diversity for Wireless LANs

M. P. Sellars, S. D. Greaves, I. J. Wassell, J. Porter and W. J. Fitzgerald

IEEE Transactions on Consumer Electronics, Vol. 45, No. 4, Nov. 1999, pp. 1169-1175

Download this paper [240kb PDF]

Pragmatic Precoder for Indoor Radio

M. P. Sellars, I. J. Wassell, and S. D. Greaves

The 2000 International Conference on Broadband Wireless Access Systems, (WAS’2000), December 2000

Currently not available for download

Performance of a Fast Start-up Equaliser for Broadband Indoor Radio

M. P. Sellars, J. Porter, S. D. Greaves, I. J. Wassell, A. Hopper and W. J. Fitzgerald

IEE Proc.- Commun., Vol. 148, No. 1, Feb. 2001, pp. 49-56

Download this paper [232kb PDF]

The Laboratory for Communications Engineering (LCE)

Within the LCE, Cambridge Broadband Networks has contributed industrial support and sponsorship including

• Radio propagation for fixed wireless access in urban areas.
• Antenna design for fixed wireless access systems.
• High speed DSP processors for broadband communications.
• Equalisation techniques for broadband wireless.

Cambridge Broadband Networks has its own research team to develop new technologies and generates a steady stream of intellectual property and patents, many of which are used in VectaStar.