3 research outputs found
Implementation of Distributed Time Exchange Based Cooperative Forwarding
In this paper, we design and implement time exchange (TE) based cooperative
forwarding where nodes use transmission time slots as incentives for relaying.
We focus on distributed joint time slot exchange and relay selection in the sum
goodput maximization of the overall network. We formulate the design objective
as a mixed integer nonlinear programming (MINLP) problem and provide a
polynomial time distributed solution of the MINLP. We implement the designed
algorithm in the software defined radio enabled USRP nodes of the ORBIT indoor
wireless testbed. The ORBIT grid is used as a global control plane for exchange
of control information between the USRP nodes. Experimental results suggest
that TE can significantly increase the sum goodput of the network. We also
demonstrate the performance of a goodput optimization algorithm that is
proportionally fair.Comment: Accepted in 2012 Military Communications Conferenc
Evaluation of an Intermittent Six-month Regimen in New Pulmonary Tuberculosis Patients with Diabetes Mellitus
Background: The treatment of tuberculosis (TB) with category I regimen of the Revised National Tuberculosis Control
Programme (RNTCP) for patients with diabetes mellitus (DM) needs evaluation.
Objective: To assess the cure and relapse rates in 3 years, among the new smear-positive TB patients with Type-2 DM
(DMTB) treated with CAT-I regimen (2E3H3R3Z3/4R3H3) of RNTCP.
Methodology: TB suspects attending the diabetology units and the TB research centre (TRC) Chennai, were investigated.
Eligible DMTB cases were enrolled. Baseline estimation of cardiac, renal, liver function tests and glycosylated-HBA1c
were undertaken. All patients received 2E3H3R3Z3/4R3H3 under supervision at TRC. Clinical and sputum (smear and
culture) examinations and monitoring of diabetic status were undertaken every month up to 24 months, then once in 3
months up to 36 months.
Results: Of 100 patients admitted, 7 were excluded for various reasons from analysis. Of 93 patients, 87 (94%) had a
favourable response at the end of treatment. Pre and post treatment mean glycosylated-HBA1c were 9.7% and 8.4
%.(>7% poor control). During follow-up period, 6 died and one lost to follow-up. Of the remaining, four relapsed.
Conclusion: Category-I regimen, recommended for all the new smear-positive patients in the Indian TB programme, is
effective in the treatment of DMTB patients, despite poor control of diabetes